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Basic Biology MCQ

1. The age of the ocean floor is greatest in subduction zones or _____.

Farthest from the mid-ocean ridges

Farthest from deep-ocean trenches

Closest to deep-ocean trenches

Closest to the central valley of the mid-ocean ridge

Answer

Correct Answer: Closest to deep-ocean trenches

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2. Preferably, a pre-game meal should be eaten about ________ before an endurance event.

30 minutes

1 hour

2 to 4 hours

5 to 6 hours.

Answer

Correct Answer: 2 to 4 hours

Note: This Question is unanswered, help us to find answer for this one

3. In eukaryotes, the normal or default state is that genes are turned _____.

Off through their association with exons

On through their association in nucleosomes

On through their association with exons

Off through their association in nucleosomes

Answer

Correct Answer: Off through their association in nucleosomes

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4. Is the accompanying figure dna or rna? is the arrow closest to the 5' or 3' end?

RNA; 3' end; A, 3'

DNA; 5' end; A, 5'

DNA; 3' end; A, 3'

RNA; 3' end; T, 3'

Answer

Correct Answer: DNA; 3' end; A, 3'

Note: This Question is unanswered, help us to find answer for this one

5. In cladistics, _______________ is(are) the primary criterion used to classify organisms.

Ecological niche

Common ancestry

Mating behavior

Observable traits

Answer

Correct Answer: Common ancestry

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6. The bird says____

Henrique Souza

Mohammed

Farid Attar

Solomon

Answer

Correct Answer: Henrique Souza

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7. The critical period for major anomalies is longest for the _____ system.

Peripheral nervous

Folic acid

Human nervous

Central nervous

Answer

Correct Answer: Central nervous

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8. Organisms that possess homologous structures probably __________.

Share a common ancestor that also had this structure

They are structurally similar due to inheritance from a common ancestor.

Adaptations help organisms survive and reproduce in a particular environment.

Natural selection progressively refines organisms' adaptations, eventually leading to perfection.

Answer

Correct Answer: Share a common ancestor that also had this structure

Note: This Question is unanswered, help us to find answer for this one

9. Phylogenetic trees can always be regarded as ________ about evolutionary relationships.

Facts.

Hypotheses.

Guesses.

None of the above.

Answer

Correct Answer: Facts.

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10. Paleontologists organize fossils of related species based on their __________________ similarities.

Molecularbehavioralstratigraphicphysical.

Natural cast

Quaternary Tertiary

Disruptive selection

Answer

Correct Answer: Molecularbehavioralstratigraphicphysical.

Note: This Question is unanswered, help us to find answer for this one

11. The embryonic precursor to the human spinal cord is the _____.

Notochord.

Neural tube.

Mesoderm.

Archenteron.

Answer

Correct Answer: Notochord.

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12. Our current ecological footprint __________.

Factors Affecting Pollution (cont.1)

Ecological Footprint

Population Bomb

Impacts of Population

Answer

Correct Answer: Ecological Footprint

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13. One primary advantage of light microscopy over electron microscopy is that ________.

Light microscopy using stains specific to kidney function

Light microscopy of living unstained material

Scanning electron microscopy

Light microscopy allows one to view dynamic processes in living cells.

Answer

Correct Answer: Light microscopy allows one to view dynamic processes in living cells.

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14. The binding of a catecholamine to a beta adrenergic receptor will ________.

Activate guanylate cyclase

Inhibit guanylate cyclase

Activate adenylate cyclase

None of these

Answer

Correct Answer: Activate adenylate cyclase

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15. The fastest way for organisms to adapt to a changing environment involves _____.

Shallow Lake

Sexual reproduction

Mutation

None of these

Answer

Correct Answer: Sexual reproduction

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16. The energy for sensory transduction by the lateral line system in fish comes from _____.

Thermal energy.

Water movements.

Odors of prey.

Electrical

Answer

Correct Answer: Water movements.

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17. In learning, the basal ganglia ____.

Integrates information over many trials

Is involved in the development of flexible responses

Is most responsive to delayed feedback

Is critical to the formation of explicit memories

Answer

Correct Answer: Integrates information over many trials

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18. Primates enhanced _ led to a reduced sense of _.

Vision;smell

Touch;smell (by self)

Taste;touch(by self)

Smell;taste(by self)

Answer

Correct Answer: Vision;smell

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19. In contemporary societies, state governments organize networks of redistribution by __________.

Collecting taxes

Organizing potlatches

Accepting donations

Trade

Answer

Correct Answer: Collecting taxes

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20. People with rem behavior disorder ____.

Move vigorously during REM, apparently acting out their dreams.

Neurons are becoming more synchronized

Relaxed wakefulness

Are more frequent and more vivid in REM sleep

Answer

Correct Answer: Move vigorously during REM, apparently acting out their dreams.

Note: This Question is unanswered, help us to find answer for this one

21. Relative to a ph of 6, a ph of 4 has a ______.

20 times higher H+ concentration

100 times lower H+ concentration

100 times higher H+ concentration

200 times higher H+ concentration

20 times lower H+ concentration

Answer

Correct Answer: 100 times higher H+ concentration

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22. Plate tectonics has been responsible for instances of all of the following except ________.

Sympatric speciation

Volcanic explosions

Allopatric speciation

Mass extinction

Answer

Correct Answer: Sympatric speciation

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23. Penicillin interferes with ____, causing bacteria to die from .

Membrane synthesis, intact membranes

Cell wall synthesis, swelling and rupturing of the cell

Protein synthesis, an inability to make protein

Osmosis, dehydration (a lack of internal water)

Answer

Correct Answer: Cell wall synthesis, swelling and rupturing of the cell

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24. The enzyme _____ repairs 99% of mismatched bases immediately during replication.

Some mutations in protein-coding regions of the genome are synonymous mutations

Some individuals in the original population had the mutations that led to resistance.

A mutation

DNA polymerase

Answer

Correct Answer: DNA polymerase

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25. The darker the skin of a person, the more likely that some of that person's ancestors _____.

Were from a geographical area closer to the equator

In a high-UV-light environment, skin color is more likely to be lighter.

Sperm do not contribute their mitochondria to the zygote.

All humans alive today are related to a single female ancestor.

Answer

Correct Answer: Were from a geographical area closer to the equator

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26. The correct order (from start to finish) of fracture repair is __________.

Bony callus formation, hematoma formation, fibrocartilaginous callus formation, and bone remodeling

Bone remodeling, hematoma formation, soft callus formation, and hard callus formation

Hematoma formation, hard callus formation, bone remodeling, and fibrocartilaginous callus formation

Hematoma formation, soft callus formation, bony callus formation, and bone remodeling

Answer

Correct Answer: Bony callus formation, hematoma formation, fibrocartilaginous callus formation, and bone remodeling

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27. The best area to check the adequacy of peripheral circulation is in the _______.

Foot

Neck

Groin

Ankle

Wrist

Answer

Correct Answer: Foot

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28. The basin and range region in the western united states is aptly named because _____.

It contains many small mountain ranges with basins

It contains many big mountains ranges witjout basins (by self)

Both of these

None of these

Answer

Correct Answer: It contains many small mountain ranges with basins

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29. The basic bilaterian body form plan can be thought of as simply _____.

Many concentric circles

A series of boxes

A tube within a tube

He most ancient of all animal lineages

Answer

Correct Answer: A tube within a tube

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30. The base of the heart faces in the _____________ directions.

Posterior and superior

Posterior and inferior

Right atrium and right ventricle

Anterior and inferior

Answer

Correct Answer: Posterior and superior

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31. The av valves close in response to the ________________________.

Contraction of the ventricles and the resulting drop in ventricular pressure

Contraction of the atria and the resulting rise in atrial pressure

Contraction of the ventricles and the resulting rise in ventricular pressure

Contraction of the atria and the resulting drop in atrial pressure

Answer

Correct Answer: Contraction of the ventricles and the resulting rise in ventricular pressure

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32. The autonomic nervous system is subdivided into two branches called the _ and _ systems.

Sympathetic parasympathetic

Sympathetic megasympathetic (by self)

Both of these (by self0

None of these (by self)

Answer

Correct Answer: Sympathetic parasympathetic

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33. Replacing lost blood volume with an isotonic saline solution ________.

Lower immunity

Restores the oxygen-carrying capacity of the circulation

Lowers the patient's hematocrit

Lowers the patient's blood volume

Answer

Correct Answer: Lowers the patient's blood volume

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34. Ren descartes would be considered to hold a ________ view of the mind-body problem.

Reductionist

Pluralist

Dualist

Animist.

Answer

Correct Answer: Dualist

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35. Reefs grow best in _______.

Deep water

Low salinity

Temperatures below 25°C

Shallow water

Answer

Correct Answer: Shallow water

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36. Recent research suggests that there is a link between _______ and low-back pain.

Smoking

Drinking (by sellf)

Excessive running (by self)

None of these

Answer

Correct Answer: Smoking

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37. Rbcs are better known as and wbcs are better known as ___.

Lymphocytes, monocytes

Erythrocytes, eosinophils

Leukocytes, erythrocytes

Erythrocytes, leukocytes

Macrophages, neutrophils

Answer

Correct Answer: Erythrocytes, leukocytes

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38. Rapid blood loss of ____ quart(s) or more in an adult can lead to shock and death.

Answer

Correct Answer: 2

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39. Pulmonary endo/scop/y is best used to _____________ diseases of the respiratory system.

Listen to

Prevent

Ctreat or cure

Dview and diagnose

Answer

Correct Answer: Dview and diagnose

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40. Pubic hair, breasts, facial hair, and deepening of the voice are called _____.

Signs of puberty

Sexual maturation

Secondary sex characteristics

Primary sex characteristics

Answer

Correct Answer: Secondary sex characteristics

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41. Protein is _______ when carbohydrates are scarce.

Burned for energy

Stored as glycogen

Used to build muscles

Stored as fat.

Answer

Correct Answer: Burned for energy

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42. Protein coding genes specify the manufacture of ________ as their immediate product.

MRNA

TRNA(by self)

DNA(by self)

None of these

Answer

Correct Answer: MRNA

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43. Proteases digest _____, a nutrient found in foods.

Protein

Liver

Enzymes

Bile

Answer

Correct Answer: Protein

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44. Proliferation of lymphocytes occurs immediately after __________.

Red bone marrow

Seeding of secondary lymphoid organs

Antigen encounter & activation

Release from the bone marrow

Answer

Correct Answer: Antigen encounter & activation

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45. Primary and secondary waves are _ waves, and love waves are _ waves.

Back and forth

Up and down (by self)

Both of these

None of these

Answer

Correct Answer: Back and forth

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46. People that will most likely be victims of peer pressure are __________.

Those with low confidence

New to a group and inexperienced

Followers rather than leaders

All of the above

Answer

Correct Answer: All of the above

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47. It is best to say that the protection to properties offered by sea walls along coasts _______.

Decreases the present and future risk to human properties

Increases both the present and future risk to human properties

Decreases the present but increases the future risk

Increases the present but decreases the future risk

Answer

Correct Answer: Decreases the present and future risk to human properties

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48. In the average adult, the sudden loss of ________ cc of blood is considered serious.

150

1,000

750

500

Answer

Correct Answer: 1,000

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49. In terms of structural materials, _ is to plants what _ is to lobsters and crabs.

Cellulose; chitin

Glycogen; cellulose

Monosaccharides; polysaccharides

Starch; glycogen

Answer

Correct Answer: Cellulose; chitin

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50. In theory, each plaque on a plate corresponds to ___________________.

The endpoint.

One infective virus in the initial suspension.

Millions of viruses in the initial suspension.

One bacterium in the initial suspension.

One mutated gene in one bacterium.

Answer

Correct Answer: One infective virus in the initial suspension.

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51. The chemical reaction illustrated in the accompanying figure _____.

Links two polymers to form a monomer

Joins two fatty acids together

Is a hydrolysis reaction

Results in a peptide bond

Answer

Correct Answer: Results in a peptide bond

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52. The chief contributors of saturated fatty acids in the u.s. diet include ________.

Whole grains

Sunflower, soybean, and safflower oils

Lecithins

Animal products

Answer

Correct Answer: Animal products

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53. One way scientists can study human migration pathways is by using ____ pathways.

Climate data

DNA

Glacial ice

Water footprint

Answer

Correct Answer: DNA

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54. Sloths have less muscle than other mammals their size in order to _______.

Conserve energy

Maintain a lower body weight

Digest their food faster

Maintain a higher body temperature

Answer

Correct Answer: Conserve energy

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55. Urine, with a ph of 6, is _________ times more acidic than seawater, with a ph of 8.

100

200

300

400

Answer

Correct Answer: 100

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56. The nutrient standards used on nutrition facts panels are called ________.

Recommended Dietary Allowances

Daily Values

Estimated Average Requirements

None of these

Answer

Correct Answer: Daily Values

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57. The membrane potential is closest to the equilibrium potential for potassium at label _____.

Answer

Correct Answer: D

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58. The main functional unit, or super organism, of a honeybee hive is the __________.

Colony.

Drone.

Worker bee.

Queen

Answer

Correct Answer: Colony.

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59. The frank-starling law of the heart is an ____________ property of heart muscle.

Intrinsic

Does

Does not

Parasympathetic

Answer

Correct Answer: Intrinsic

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60. Some neandertal physical characteristics may have arisen as adaptations to a ______ environment.

Humid

Hot

Cold

Tropical

Answer

Correct Answer: Cold

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61. Shubin and daeschler specifically traveled to ellesmere island to hunt for fossils because _____.

The rocks on the island were of the right age to contain transitional vertebrate fossils.

How vertebrates evolved tetrapod limbs

Different environments leading to the evolution of different types of limbs

None of these

Answer

Correct Answer: The rocks on the island were of the right age to contain transitional vertebrate fossils.

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62. S, the selection coefficient, is a relative measure of _________________

Survival

Fitness

In genetics

None of these

Answer

Correct Answer: Survival

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63. Ruvc endonuclease resolves holliday junctions according to a patch recombination model if ______?

The cuts are on the same strand, and there is no crossover

Correct pairing still occurs, axial associations are formed, but there are no synaptonemal complexes formed.

RecA and SSB act together to achieve strand invasion by coating ss DNA.

None of these

Answer

Correct Answer: The cuts are on the same strand, and there is no crossover

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64. Cells are most stable in _________ environments?

Hypertonic

Isotonic

Hypotonic

None of the above

Answer

Correct Answer: Isotonic

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65. Animals that can detect ultraviolet (uv) light differ from humans by having ________.

Larger eyes that can collect more UV light

Additional visual sensors to allow detection of different light types

Thicker retinas that can capture UV light more efficiently

UV-specific opsins that extend their visible light spectrum

Answer

Correct Answer: UV-specific opsins that extend their visible light spectrum

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66. An important source of antioxidants is the found in .

Phytochemicals; plants

Polar; plants

Hydrocarbon; plants

Amino acids; plants

Answer

Correct Answer: Phytochemicals; plants

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67. A hypothesis must be testable to be scientifically valid. being testable means that _____.

Some conceivable observation or experiment could reveal whether a given hypothesis is incorrect

Usually are relatively narrow in scope; theories have broad explanatory power

By the uncovering of new information

Important terms and key concepts Generating a concept map to diagram a complex lecture

Answer

Correct Answer: Some conceivable observation or experiment could reveal whether a given hypothesis is incorrect

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68. ________ prohibits re-initiation of chromosome replication.

DnaA-ATP

SeqA

OriC

FtsZ

Answer

Correct Answer: SeqA

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69. ____ is a form of vigorous physical activity.

Aerobic dancing

Static stretching

Yoga

Strength training

Answer

Correct Answer: Aerobic dancing

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70. _____ aid in the coordination of the activities of adjacent animal cells.

Gap junctions

Keratin fibers

Tight junctions

Desmosomes

Answer

Correct Answer: Gap junctions

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71. Using body mass index (bmi), a bmi of to _ is defined as overweight.

30; 45

25; 29.9

17.9; 25

25; 30.

Answer

Correct Answer: 30; 45

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72. In a comparison of birds and mammals, the condition of having four limbs is __________.

A shared derived character

A character useful for distinguishing birds from mammals

A shared ancestral character

An example of analogy rather than homology

Answer

Correct Answer: A shared ancestral character

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73. Human prenatal development takes ___ weeks.

Answer

Correct Answer: 38
44

Note: This question has more than 1 correct answers

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74. Caspases in mammals, which are similar to _ in nematodes, are involved in _.

CED-3; apoptosis

LIN-3; establishing anterior-posterior axes

CED-3; establishing the identity of segments

LIN-3; establishing the identity of segments

Answer

Correct Answer: CED-3; apoptosis

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75. Bones are composed mostly of __________. a. magnesium b. vitamins c. calcium d. cartilage

Magnesium

Vitamins

Calcium

Cartilage

Answer

Correct Answer: Calcium

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76. Based on this tree, the lineage leading to ________ was the first to diverge from the other lines.

Turtles

Birds

Dinosaurs

Mammals

Crocodilians

Answer

Correct Answer: Mammals

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77. At the onset of the embryonic period, the _____ appears. it will eventually become the neural tube.

Primitive streak

Stem cells

Spinal cord

Placenta

Answer

Correct Answer: Primitive streak

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78. Arteries are most accurately defined as blood vessels that ________.

Carry highly oxygenated blood

Carry blood toward the heart

Carry blood away from the heart

Carry deoxygenated blood

Answer

Correct Answer: Carry blood away from the heart

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79. Archaea has no _________________. as a result, it is unable to form the 30 nm fiber of chromatin.

Histone H2B

Histone H3

Histone H1

Histone H2A

Answer

Correct Answer: Histone H1

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80. An ovum bursts from one of a womans two and is drawn into one of two .

Ovaries, Fallopian tubes

Corpus, Luteum

Testes, Fallopian tubes

Blastocyte, Corpus

Answer

Correct Answer: Ovaries, Fallopian tubes

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81. An e. coli cell without a functional laci gene is expected to _____.

Never produce β-galactosidase

Always produce β-galactosidase

Be unable to transport lactose into the cell

Be unable to metabolize lactose within the cell

Answer

Correct Answer: Always produce β-galactosidase

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82. After a human sperm penetrates an egg, a fertilization envelope forms. this membrane _____.

Prevents more than one sperm from entering the egg

Release an enzyme that breaks down the membrane of the ovum

Changes into the corpus luteum and makes hormones

Of the progesterone and estrogen

Answer

Correct Answer: Prevents more than one sperm from entering the egg

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83. According to this figure, the amphibians are a _____ group.

Paraphyletic

Monophyletic

Polyphyletic

None of these

Answer

Correct Answer: Monophyletic

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84. About ___ babies born to mothers over 40 have .

1 out of 10; Down syndrome

1 out of 10; Tay-Sachs

1 out of 4; Down syndrome

1 out of 4; Tay-Sachs

Answer

Correct Answer: 1 out of 4; Down syndrome

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85. Unlike skeletal muscle action potentials, cardiac muscle action potentials __________.

Electrical activity in the heart

Do not involve repolarization

Involve calcium voltage-gated channels

Have a short refractory period

Answer

Correct Answer: Involve calcium voltage-gated channels

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86. The variety of skin tones present in the world demonstrates ________________.

Non random mating

Traits are distributed continuously

1.6-2 mya (Homo erectus)

Incomplete dominance

Answer

Correct Answer: Incomplete dominance

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87. A supplemental appendix is to a book as a ____________ is to a bacterial chromosome.

Restriction enzyme

Bacterium

Genetically modified organism

Plasmid

Answer

Correct Answer: Plasmid

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88. To help prevent the proliferation of antibiotic-resistant bacteria, you should __________.

Take the full course of any antibiotics your doctor has prescribed

Relies on variation among individuals in a population

An organism that is a common ancestor to all living organisms

None of these

Answer

Correct Answer: Take the full course of any antibiotics your doctor has prescribed

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89. The highlighted grouping in the cladogram is a ____________ grouping.

Monophyletic

Paraphyletic

Polyphyletic

None of the above

Answer

Correct Answer: Monophyletic

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90. The figure below illustrates ______.

Transcription

Factors activators

Alternative RNA splicing

Protein activation.

Answer

Correct Answer: Alternative RNA splicing

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91. Speciation requires that two populations become _____ isolated from each other.

Reproductively

Geographically

Temporally

Behaviorally

Zygotically

Answer

Correct Answer: Reproductively

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92. Wormlike lineages of lophotrochozoans are distinguished by specialized _____.

Suspension feeding

Mouthparts or feeding structures

Both a and b

None of the above

Answer

Correct Answer: Mouthparts or feeding structures

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93. The results of the meselson-stahl experiments relied on all of the following except _______.

One light band and one intermediate band

Single‑strand binding proteins stabilize the open conformation of the unwound DNA.

The fact that DNA is the genetic material

Distinguish between semi-conservative and dispersive replication

Answer

Correct Answer: The fact that DNA is the genetic material

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94. The rate of ventricular conduction is best determined by the _______________________ on an ecg.

The number of QRS complexes present within a specific unit of time

The number of T waves present within a specific unit of time

The number of P waves present within a specific unit of time

None of these

Answer

Correct Answer: The number of QRS complexes present within a specific unit of time

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95. The primary role of the phosphate buffer system is to __________.

Buffer intracellular fluid (ICF)

Decrease bone mass

Decreasing calcium ion concentration of the blood

Increased levels of ANP

Answer

Correct Answer: Buffer intracellular fluid (ICF)

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96. One group of reptiles, characterized by the fossil archaeopteryx, led to the evolution of _____.

Evolution of Birds

The Rocky Mountain

Arthropods

Last 2 million years of geologic time.

Answer

Correct Answer: Evolution of Birds

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97. Of the following urinary system organs, major homeostatic functions are performed by the ________.

Kidneys

Ureters

Urinary bladder

None of these

Answer

Correct Answer: Kidneys

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98. Ocean acidification is the result of cars releasing _______.

Acid directly into the atmosphere

Carbon dioxide that forms acid when it dissolves in water

Sulphur dioxide that forms acid in the atmosphere

Nitrogen oxides that form acid in the atmosphere

Answer

Correct Answer: Carbon dioxide that forms acid when it dissolves in water

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99. Obesity is defined as having a body mass index of ______ or higher.

Overweight

Intensity

Jogging

Seven

Answer

Correct Answer: Overweight

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100. Moving through trophic levels _______.

None of the above

More producers than consumers

Photosynthesis

All of the above

Answer

Correct Answer: All of the above

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101. Most autistic individuals develop symptoms of the disorder ________.

At birth

Before age one

Before age three

Before teen years

Answer

Correct Answer: Before age three

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102. Lepirudin is a drug that inhibits thrombin. it will have an effect specifically on the __________.

Negative feedback loop

Common pathway of coagulation

Basophils

To protect vital organs

Answer

Correct Answer: Common pathway of coagulation

Note: This Question is unanswered, help us to find answer for this one

103. Large animals need specialized organs for gas exchange because ________.

Volume increases more rapidly than surface area as size increases.

Many parasites release fertilized eggs in the feces of humans and other animals

Remove small bites of flesh from sea slugs and have long-term memory

To allow maximum exposure to light and to reduce shading of lower leaves

Answer

Correct Answer: Volume increases more rapidly than surface area as size increases.

Note: This Question is unanswered, help us to find answer for this one

104. Gene families are groups of ___ genes that arose by _ and _____.

Homologous; speciation; sequence evolution

Heterologous; gene duplication; sequence evolution

Homologous; gene duplication; genetic drift

Heterologous; speciation; genetic drift

Homologous; gene duplication; sequence evolution

Answer

Correct Answer: Homologous; gene duplication; sequence evolution

Note: This Question is unanswered, help us to find answer for this one

105. Fish rely on coral for _______.

Helter

Food supply

Camouflage

All of the above

Answer

Correct Answer: All of the above

Note: This Question is unanswered, help us to find answer for this one

106. An experiment looking at structures smaller than a cell would most likely employ a _______.

Dissecting microscope

Transmission electron microscope

Scanning electron microscope

Compound light microscope

Answer

Correct Answer: Transmission electron microscope

Note: This Question is unanswered, help us to find answer for this one

107. Action potentials occur ____________________________.

In the unmyelinated regions of an axon

In myelinated regions of an axon

In both unmyelinated and myelinated regions of an axon and the dendrites

None of the above

Answer

Correct Answer: In the unmyelinated regions of an axon

Note: This Question is unanswered, help us to find answer for this one

108. A regulatory process called _____ helps you maintain your baseline body weight.

Energy homeostasis

Stimulate appetite

Emotion

Amygdala

Answer

Correct Answer: Energy homeostasis

Note: This Question is unanswered, help us to find answer for this one

109. A person experiencing dizziness after using a strong household cleaner is illustrating ____.

A chronic effect

A subchronic effect

An acute effect

A subacute effect

Superacute exposure

Answer

Correct Answer: An acute effect

Note: This Question is unanswered, help us to find answer for this one

110. A means of controlling sex offenders has involved reducing ____.

Prolactin

Testosterone levels

The alpha-fetoprotein level in their blood

Estrogen levels

Answer

Correct Answer: Testosterone levels

Note: This Question is unanswered, help us to find answer for this one

111. A man who carries an allele of an x-linked gene will pass it on to _____.

All of his daughters

Half of his daughters

All of his sons

All of his children

Answer

Correct Answer: All of his daughters

Note: This Question is unanswered, help us to find answer for this one

112. To reconstruct phylogenies, biologists use the __________ method.

This information is used in all fields of biology to

Understand the structure, function, and

Behavior of organisms.

None of these

Answer

Correct Answer: This information is used in all fields of biology to

Note: This Question is unanswered, help us to find answer for this one

113. The statement "dna rna proteins" ________.

Describes the difference between prokaryotes and eukaryotes

Is known as central dogma

Describes the cell theory

None of these

Answer

Correct Answer: Is known as central dogma

Note: This Question is unanswered, help us to find answer for this one

114. Some viruses cause abnormal growth of cells rather than destruction. this is called __________.

Transformation

Transcription

Transduction

Conjugation

Answer

Correct Answer: Transformation

Note: This Question is unanswered, help us to find answer for this one

115. Human cancer causing viruses most often have a ___________ genome.

SsDNA

DsDNA

SsRNA

DsRNA

Answer

Correct Answer: DsDNA

Note: This Question is unanswered, help us to find answer for this one

116. During the illumina sequencing reaction, ______________

A solution containing each four deoxynucleotide triphosphate (dNTP) flows over the flowcell one by one.

When a nucleotide is added to the growing chain, PPi is released and produces a light-emitting chemical reaction.

An X-ray film is used to capture the radioactive signal when a nucleotide is incorporated into the growing chain

When a nucleotide with reversible terminator is incorporated into the growing chain and a florescent signal is produced.

Answer

Correct Answer: When a nucleotide with reversible terminator is incorporated into the growing chain and a florescent signal is produced.

Note: This Question is unanswered, help us to find answer for this one

117. A multivitamin supplement is a(n) ___________ supplement.

Macronutrient

Enzyme

Mineral

Micronutrient

Answer

Correct Answer: Micronutrient

Note: This Question is unanswered, help us to find answer for this one

118. 66. "fluoroscopy" is used to record ________:

Myopia

Ecording pictures of vessels

Moving body parts

Kidney pelvis

Answer

Correct Answer: Moving body parts

Note: This Question is unanswered, help us to find answer for this one

119. A typical oil control ring consists of _______ separate part(s).

Three

Four

One

Two.

Answer

Correct Answer: Two.

Note: This Question is unanswered, help us to find answer for this one

120. The u.s. teen birth rate is __________ to the other developed nations of the world.

Ncreases; increases

The highest compared

Contraceptive use among teens has gone up

None of these

Answer

Correct Answer: The highest compared

Note: This Question is unanswered, help us to find answer for this one

121. Climate and sea-level changes caused by the formation of the supercontinent pangaea _____.

Promoted milder living conditions and accelerated the evolution of Permian life

Led to the late Cretaceous extinction of the dinosaurs

Were a significant factor leading to the Permian mass extinctions of terrestrial and marine life

Occurred well after the Permian extinction

Answer

Correct Answer: Were a significant factor leading to the Permian mass extinctions of terrestrial and marine life

Note: This Question is unanswered, help us to find answer for this one

122. Sacred rituals that are especially important in the veneration of ancestors are called __________.

Lib

Qic

Wud

Wei.

Answer

Correct Answer: Lib

Note: This Question is unanswered, help us to find answer for this one

123. Dallol is located on the edge of the _____________.

The Danakil Depression in the southern part of the Afar triangle of Ethiopia.

The Danakil Depression in the northern part of the Afar triangle of Ethiopia.

Both of these

None of these

Answer

Correct Answer: The Danakil Depression in the northern part of the Afar triangle of Ethiopia.

Note: This Question is unanswered, help us to find answer for this one

124. _____________ residues act as an address for delivery of proteins to lysosomes

Ubiquitin

Selenocysteine

Methionine

Mannose 6-phosphate

Answer

Correct Answer: Mannose 6-phosphate

Note: This Question is unanswered, help us to find answer for this one

125. Scientists from russia and japan are attempting to resurrect the extinct woolly mammoth __________.

By using well-preserved bone marrow from the thigh of a frozen mammoth

Costa Rican zoned reserves

Is in danger of extinction

None of these

Answer

Correct Answer: By using well-preserved bone marrow from the thigh of a frozen mammoth

Note: This Question is unanswered, help us to find answer for this one

126. The heaviest and fastest of all the small wildcats is the _______.

Jaguar

Tiger

Caracal

Bobcat.

Answer

Correct Answer: Caracal

Note: This Question is unanswered, help us to find answer for this one

127. The u.s. joint global ocean flux study was aimed at understanding _______.

The ocean carbon cycle

The ocean phosphorous cycle

Global warming

Fish breeding patterns

Answer

Correct Answer: The ocean carbon cycle

Note: This Question is unanswered, help us to find answer for this one

128. Today, north america has several small- to medium-sized plates subducting beneath its ____________.

Blind

Rift zone

Western margin

Carbon

Answer

Correct Answer: Western margin

Note: This Question is unanswered, help us to find answer for this one

129. A(n) ____________ acts to increase the hydrogen ion concentration of a solution.

Acid

Calcium

Iodine

Copper

Answer

Correct Answer: Acid

Note: This Question is unanswered, help us to find answer for this one

130. Behaviorists believe that psychologists should focus on _____.

Observable behaviors

Inner drives and motives

A person's ideas and beliefs

A person's sexual conflict

Answer

Correct Answer: Observable behaviors

Note: This Question is unanswered, help us to find answer for this one

131. Hull fouling is a(n) _______ introduction of nonnative species.

Unintentional

Intentional

Unimportant

Land-based

Answer

Correct Answer: Unintentional

Note: This Question is unanswered, help us to find answer for this one

132. Using nuclear transplantation, it is possible to generate __________ for therapeutic uses.

Placenta

Immune compromised mice

Blastomeres

Blastocysts

Answer

Correct Answer: Blastocysts

Note: This Question is unanswered, help us to find answer for this one

133. Nonreplicative transposition occurs by breakage and reunion when_____?

Provides genetic diversity and repair DNA breaks

Portable regions of homology in reciprocal recombination

Reverse transcriptase, integrase, and capsid protein

The crossover complex is nicked at the unbroken pair of donor strands.

Answer

Correct Answer: The crossover complex is nicked at the unbroken pair of donor strands.

Note: This Question is unanswered, help us to find answer for this one

134. Mount saint helens represents an example of , which began with a .

Mercury is concentrated in swordfish because of biological magnification

Two species cannot coexist in the same location if they are too much alike

Primary succession; volcanic eruption

The flow of energy to the animal that does the eating

Answer

Correct Answer: Primary succession; volcanic eruption

Note: This Question is unanswered, help us to find answer for this one

135. Most taste buds are made of __________ types of modified epithelial cells.

Four

Two

Three

Five

Answer

Correct Answer: Two

Note: This Question is unanswered, help us to find answer for this one

136. Most cases of encephalitis _____.

Pia mater and arachnoid mater.

Over age 65 and under age 5.

Mild and require no specific treatment.

Orally and affects motor neurons.

Answer

Correct Answer: Mild and require no specific treatment.

Note: This Question is unanswered, help us to find answer for this one

137. The order ___________ is responsible for vectoring trench fever.

Phthiraptera.

Ischnocera

Mallophaga

Rhynchophthirina

Answer

Correct Answer: Phthiraptera.

Note: This Question is unanswered, help us to find answer for this one

138. According to ernest hilgard, hypnosis is the result of __________.

The effects of a hidden observer in the unconscious

A trusting relationship between the hypnotist and subject

Whether hypnosis was a neurological or psychological phenomenon

Every person has a raw, magnetic energy.

Answer

Correct Answer: The effects of a hidden observer in the unconscious

Note: This Question is unanswered, help us to find answer for this one

139. Foodborne illnesses typically result primarily in ________ signs and symptoms.

Defrosting

Gastrointestinal

Encephalopathy

Cockroaches

Answer

Correct Answer: Gastrointestinal

Note: This Question is unanswered, help us to find answer for this one

140. Competitive athletes train at __________ of estimated maximal heart rate.

50-65%

70-75%

80-95%

95-100%

Answer

Correct Answer: 80-95%

Note: This Question is unanswered, help us to find answer for this one

141. Fluctuations in the phosphorus cycle in aquatic ecosystems _______.

Can lead to changes in the growth rates of aquatic populations

Are never caused by human impact on the environment

Lead to a decrease in the amount of phosphorus found in sediment

Never occur naturally

Answer

Correct Answer: Can lead to changes in the growth rates of aquatic populations

Note: This Question is unanswered, help us to find answer for this one

142. Climax communities __________________communities that are undergoing primary succession.

Occur before

Are always the result of

Are usually more rich in species biodiversity than

Require more environmental disruption by disasters than

Answer

Correct Answer: Are usually more rich in species biodiversity than

Note: This Question is unanswered, help us to find answer for this one

143. The teeming diversity of animals in the rain forest has led to _____.

Species specialization

Life higher up in trees

Overcrowding of herbivores

Too many communities

Answer

Correct Answer: Species specialization

Note: This Question is unanswered, help us to find answer for this one

144. Solid fats have a high proportion of _____.

Glycerol

Saturated fatty acids

Unsaturated fatty acids

Fish and vegetable oils

Answer

Correct Answer: Saturated fatty acids

Note: This Question is unanswered, help us to find answer for this one

145. Within eukaryotic cells, there is an intricate network of _______ with unique functions.

Mitochondria

Organelles

Vacuoles

Lysosomes

Answer

Correct Answer: Organelles

Note: This Question is unanswered, help us to find answer for this one

146. Which of the following is a property of liquid water? liquid water _____.

Is nonpolar

Has a specific heat that is lower than that for most other substances

Is less dense than ice

Has a heat of vaporization that is higher than that for most other substances

Answer

Correct Answer: Has a heat of vaporization that is higher than that for most other substances

Note: This Question is unanswered, help us to find answer for this one

147. Water currents along the coastline of chile pull up deep water that is __________.

Warm and low in nutrients

Cold and high in nutrients

Surface water

Warm and high in nutrients

Answer

Correct Answer: Cold and high in nutrients

Note: This Question is unanswered, help us to find answer for this one

148. Various persons or groups with a legitimate interest in a company's actions are called ____.

Stakeholders

Shareholders

Indirect investors

Boundary spanners

Answer

Correct Answer: Stakeholders

Note: This Question is unanswered, help us to find answer for this one

149. Two features of ray-finned fish not found in sharks are _____.

A lateral line system and electrosensors on the head

A swim bladder and opercula

Gills and a lateral line system

Muscular fins supported by stout bones and lungs

Answer

Correct Answer: A swim bladder and opercula

Note: This Question is unanswered, help us to find answer for this one

150. Turning off a respirator or a heart-lung machine is an example of _____ euthanasia.

Active

Deliberate

Sustained

Passive

Answer

Correct Answer: Active

Note: This Question is unanswered, help us to find answer for this one

151. Tropical ocean waters are more saline than colder waters because tropical waters _____.

Get salt from currents

Get more sediments

Have more fish

Evaporate more rapidly

Answer

Correct Answer: Evaporate more rapidly

Note: This Question is unanswered, help us to find answer for this one

152. Traffickers look for victims in vulnerable situations such as ________. select all that apply.

Politically unstable countries.

Politically stable countries

Both A and B

None of these

Answer

Correct Answer: Politically unstable countries.

Note: This Question is unanswered, help us to find answer for this one

153. Together, sewage treatment and drinking water treatment are used to _____.

Decrease solid waste

Produce nutrients

Reduce the risk of waterborne diseases

Generate electricity

Save money

Answer

Correct Answer: Reduce the risk of waterborne diseases

Note: This Question is unanswered, help us to find answer for this one

154. There are more species of ______ than of any other type of animal.

Nematodes

Annelids

Arthropods

Molluscs

Answer

Correct Answer: Arthropods

Note: This Question is unanswered, help us to find answer for this one

155. The source of most of the energy we use today is _____. fossil fuels geothermal nuclear biomass

Fossil fuels

Geothermal

Nuclear

Biomass.

Answer

Correct Answer: Fossil fuels

Note: This Question is unanswered, help us to find answer for this one

156. The prefix ana- means _____; the opposite of ana- is _.

Up or apart, cata-

After or behind, pre-

Sub-, under or beneath

Anti-, against

Answer

Correct Answer: Up or apart, cata-

Note: This Question is unanswered, help us to find answer for this one

157. The place within a replication bubble where replication is actually occurring is called a _____.

Replication fork.

Glycolysis

Atp synthase

Pyruvate oxidation

Answer

Correct Answer: Replication fork.

Note: This Question is unanswered, help us to find answer for this one

158. The nuclear envelope disintegrates during _____. metaphase prophase anaphase telophase

To main chromosomes number through generations cause genetic variation by recombination.

Plant cells divide by means of a cell plate, animal cells undergo furrowing.

Pho phase.

Having chromosomes which occar singly, not in matched sets or pairs.

Answer

Correct Answer: Pho phase.

Note: This Question is unanswered, help us to find answer for this one

159. The lock-and-key analogy for enzymes applies to the specificity of enzymes _____.

Changing the shape of the enzyme's active site

The reaction proceeds with a net release of free energy.

Binding to their substrate

Nomne of these

Answer

Correct Answer: Binding to their substrate

Note: This Question is unanswered, help us to find answer for this one

160. The aspect of hearing that declines most significantly in midlife is the ability to __________.

Hear high-pitched sounds

Hear low pitched sounds (by self)

Both of these (by self)

Nonne of these (by self)

Answer

Correct Answer: Hear high-pitched sounds

Note: This Question is unanswered, help us to find answer for this one

161. The animal rights movements in society evolved from ________.

Virtue ethics

Anthropocentric ethics

Biocentric ethics

Ecocentric ethics

Environmental ethics

Answer

Correct Answer: Biocentric ethics

Note: This Question is unanswered, help us to find answer for this one

162. The amount of carbon removed by forests in the united states each year is equal to _______.

3380 semi-trucks full of carbon

3391 semi-trucks full of carbon

3390 semi-trucks full of carbon

3385 semi-trucks full of carbon

Answer

Correct Answer: 3390 semi-trucks full of carbon

Note: This Question is unanswered, help us to find answer for this one

163. The absorption of the majority of ingested nutrients takes place largely in the __________.

Large intestine

Stomach

Small intestine

The pancreas

Answer

Correct Answer: Small intestine

Note: This Question is unanswered, help us to find answer for this one

164. The pyelogram records information about the _____:

Kidney pelvis

Kidney ureter

Gall bladder

Kidney nephron

Answer

Correct Answer: Kidney pelvis

Note: This Question is unanswered, help us to find answer for this one

165. The decision for a neuron to fire is determined by the ____.

Number of epsps only

Opening of sodium channels

ratio of EPSPs to IPSPs

rapid sequence of epsps

Answer

Correct Answer: ratio of EPSPs to IPSPs

Note: This Question is unanswered, help us to find answer for this one

166. The ___________________ propelled flowering plants to an explosive adaptive radiation.

Colonization of the Galápagos Islands

Mass extinction of fern-like plants

Colonization of land

Evolutionary innovation of the flower

Evolutionary innovation of the leaf

Answer

Correct Answer: Evolutionary innovation of the flower

Note: This Question is unanswered, help us to find answer for this one

167. The ____________ exhibit receipt and association of general body sensations.

Partietal lobes

Occipital Lobe

Cerebral gyri

Hypothalamus

Answer

Correct Answer: Partietal lobes

Note: This Question is unanswered, help us to find answer for this one

168. The ___ lies directly behind the _. these two regions are "twins."

Parietal lobes

Somatosensory cortex; motor cortex

Both A and B

None of these

Answer

Correct Answer: Somatosensory cortex; motor cortex

Note: This Question is unanswered, help us to find answer for this one

169. The __________ is the maximum drug effect, regardless of dose.

Cumulative effect

Metabolism

Threshold

Plateau effect

Answer

Correct Answer: Plateau effect

Note: This Question is unanswered, help us to find answer for this one

170. The __________ creed signifies the belief in the father, the son, and the holy spirit.

Creation

Humility

Apostle's

Obedience

Answer

Correct Answer: Apostle's

Note: This Question is unanswered, help us to find answer for this one

171. The ___ method of anthropology is useful in many different work settings.

Marketing

Pedagogical

Statistical

Participant

Observation.

Answer

Correct Answer: Observation.

Note: This Question is unanswered, help us to find answer for this one

172. Surveys indicate most adults in middle adulthood are afraid of having __________.

Cancer

Diabetes

Heart problems

Psychological problems

Answer

Correct Answer: Cancer

Note: This Question is unanswered, help us to find answer for this one

173. Sound waves arriving at a listener first strike the _____.

Tectorial membrane

Tympanic membrane

Basilar membrane

Round-window membrane

Hair cell membrane

Answer

Correct Answer: Tympanic membrane

Note: This Question is unanswered, help us to find answer for this one

174. Some antibiotics interfere with bacterial ribosomes by _____ protein synthesis.

Interfering with human

Increasing human

Interfering with bacterial

Amplifying bacterial

Answer

Correct Answer: Interfering with bacterial

Note: This Question is unanswered, help us to find answer for this one

175. Sexual reproduction relies on __ and cell growth and repair rely on _.

Meiosis, Mitosis

Bacterial cells

Promoter binding

None of these

Answer

Correct Answer: Meiosis, Mitosis

Note: This Question is unanswered, help us to find answer for this one

176. Sedimentary rocks with ripple marks suggest that the rocks formed _____.

Along a beach or stream bed

When animals walked over them

From shell fragments of ancient sea-dwelling animals

When wet mud dried and shrank

Answer

Correct Answer: Along a beach or stream bed

Note: This Question is unanswered, help us to find answer for this one

177. Scientific experimentation is important in that it allows the experimenter to __________.

Confirm the hypotheses with certainty

Measure the variable being tested without error

Reject some alternative hypotheses

Obtain qualitative rather than quantitative results

Answer

Correct Answer: Reject some alternative hypotheses

Note: This Question is unanswered, help us to find answer for this one

178. Savanna is considered a transitional biome because it is intermediate between two _______.

Climates

Regions

Biomes

Ecosystems

Answer

Correct Answer: Biomes

Note: This Question is unanswered, help us to find answer for this one

179. Salinization increases the concentration of _______ in soil.

Plants

Nutrients

Salt

Water

Answer

Correct Answer: Salt

Note: This Question is unanswered, help us to find answer for this one

180. Rods are to cones as _ is (are) to _.

Peripheral vision and night vision

Color vision and visual acuity color vision and night vision

Bright light conditions bipolar cells

Ganglion cells color vision and visual acuity

Peripheral vision and night vision

Answer

Correct Answer: Peripheral vision and night vision

Note: This Question is unanswered, help us to find answer for this one

181. Nodes of _ are gaps in the _ that coat some axons.

Myelin; glia

Ranvier; myelin

Membrane; sheath

Axons; synaptic fluid

Answer

Correct Answer: Ranvier; myelin

Note: This Question is unanswered, help us to find answer for this one

182. Negative feedback is a method of homeostatic control that __________.

Increases the speed and rapidity of negative responses to environmental stimuli

As a blood clot begins to form, the process of its formation gets faster and faster.

After you eat, glucagon stimulates an increase in blood sugar levels.

After you eat, insulin stimulates the lowering of blood sugar levels.

Answer

Correct Answer: Increases the speed and rapidity of negative responses to environmental stimuli

Note: This Question is unanswered, help us to find answer for this one

183. Natural selection drives changes in allele frequencies by influencing traits with a ____ basis.

Genetic

Non-genetic

Asexual

Lethal

Answer

Correct Answer: Genetic

Note: This Question is unanswered, help us to find answer for this one

184. Much of the original forest cover on madagascar has been destroyed primarily as a result of _____.

Fragmentation

Being transported along with plants and soil

Burning for agricultural purposes

None of these

Answer

Correct Answer: Burning for agricultural purposes

Note: This Question is unanswered, help us to find answer for this one

185. Most mutagens are carcinogens. this is because __________.

Increasing the reproductive success of cancer cells and treating them with a chemotherapeutic drug to which they are susceptible

Both bring about cancer-causing DNA changes

Visualize patterns of gene expression

Embryonic stem cells

Answer

Correct Answer: Both bring about cancer-causing DNA changes

Note: This Question is unanswered, help us to find answer for this one

186. Most _______ are secreted into the extracellular fluid from endocrine glands or tissues.

Hormones

Cxytocin; females

Destroying cells within field CA1 of the hippocampus

None of these

Answer

Correct Answer: Hormones

Note: This Question is unanswered, help us to find answer for this one

187. Long before humans invented it to power aircraft, jet propulsion evolved in _____.

Arthropods with jointed limbs

Cephalopod mollusks

Early insects

Snails and chitons

Answer

Correct Answer: Cephalopod mollusks

Note: This Question is unanswered, help us to find answer for this one

188. Lack of body fluids is to thirst as is to .

Motivation; emotion.

Need; drive

Homeostasis; hunger.

Incentive; instinct

Answer

Correct Answer: Need; drive

Note: This Question is unanswered, help us to find answer for this one

189. In a typical stream, where the gradient is steep, the discharge is _____.

Absent

Immeasurable

Large

Small

None

Answer

Correct Answer: Small

Note: This Question is unanswered, help us to find answer for this one

190. In a municipal wastewater treatment plant, the primary treatment step includes ________.

Chlorinating the sewage

Stirring the sewage to increase oxidation

Adding bacteria to the sewage

Micro-filtering the sewage

Letting sewage sit in large settling tanks so suspended solids settle out

Answer

Correct Answer: Letting sewage sit in large settling tanks so suspended solids settle out

Note: This Question is unanswered, help us to find answer for this one

191. In a complete flower, a(n) _is found on a filament and a(n) _ is found on a(n) _____.

Anther; stigma; style

Style; anther; stigma

Stigma; style; anther

Stigma; anther; style

Anther; style; stigma

Answer

Correct Answer: Anther; stigma; style

Note: This Question is unanswered, help us to find answer for this one

192. Images that fall on the optic __________ are not visible because this area lacks rods and cones.

Chiasm

Nerve

Disk

Hole

Answer

Correct Answer: Disk

Note: This Question is unanswered, help us to find answer for this one

193. If you randomly removed a somatic cell from the human body, odds are that it would ________.

Have 16 chromosomes

Have 26 chromosomes

Have 46 chromosomes

Have 76 chromosomes

Answer

Correct Answer: Have 46 chromosomes

Note: This Question is unanswered, help us to find answer for this one

194. If the protein retinoblastoma is , it can bind to and the myc protein.

Phosphorylated ; inactivate

Phosphorylated ; activate

Either phosphorylated ; inactivate or dephosphorylated ; activate

Dephosphorylated ; inactivate

Answer

Correct Answer: Dephosphorylated ; inactivate

Note: This Question is unanswered, help us to find answer for this one

195. If the figure represents a marine food web, zooplankton are most likely ________.

Answer

Correct Answer: C

Note: This Question is unanswered, help us to find answer for this one

196. Humans use more fresh water for ________ than for any other purpose.

Drinking and cooking

Washing and home use

Irrigating crops

Mining and industrial processes

Electrical production

Answer

Correct Answer: Irrigating crops

Note: This Question is unanswered, help us to find answer for this one

197. Humans are dependent on _______ for their food supply.

Water

Biomass

Fossil fuels

Timber

Answer

Correct Answer: Biomass

Note: This Question is unanswered, help us to find answer for this one

198. Hospital outpatient programs and methadone clinics would be examples of __________ prevention.

Prevention

Tertiary

Strength

Behavior

Answer

Correct Answer: Tertiary

Note: This Question is unanswered, help us to find answer for this one

199. Highway vehicles are responsible for ___% of the nox air emissions in the u.s.

Answer

Correct Answer: 38

Note: This Question is unanswered, help us to find answer for this one

200. High-fat foods stimulate the appetite mostly because they ____.

Are satiating

Are flavorful

Suppress salivary gland secretion

Trigger the release of oxyntomodulin

Increase secretion of endorphins

Answer

Correct Answer: Are flavorful

Note: This Question is unanswered, help us to find answer for this one

201. Her nervousness had a profound on her ability to play the piano. it _ me too.

Effect / affected

Affect / effected

Affect / affected

Effect / effected

Answer

Correct Answer: Affect / affected

Note: This Question is unanswered, help us to find answer for this one

202. Hearing organs are housed within the ___________ in the inner ear.

Cupula

Hyaloid

Cochlea

Cerumen

Answer

Correct Answer: Cochlea

Note: This Question is unanswered, help us to find answer for this one

203. Habituation and sensitization differ depending upon whether ____.

The effect is retroactive or proactive

The response grows weaker or stronger

The animal's behavior changes or fails to change

It occurs in all species or just mammals

Answer

Correct Answer: The response grows weaker or stronger

Note: This Question is unanswered, help us to find answer for this one

204. H.m. was able to learn and remember ____.

People's names

How to find his way to a new residence

Skills like mazes and puzzles

Events in recent history

Answer

Correct Answer: Skills like mazes and puzzles

Note: This Question is unanswered, help us to find answer for this one

205. Gold is opaque and reflective. it has a _____.

Glassy luster

Metallic luster

Dull luster

Pearly luster

Answer

Correct Answer: Metallic luster

Note: This Question is unanswered, help us to find answer for this one

206. Contraceptive pills mimic the _ feedback effect of _.

Positive; and estrogens progesterone

Negative; FSH and LH

Negative; human chorionic gonadotropin (HCG)

Negative; and estrogens progesterone

Answer

Correct Answer: Negative; and estrogens progesterone

Note: This Question is unanswered, help us to find answer for this one

207. Characters traits can be discovered by analyzing __________.

Hyperbole

Imagery

Characterization

Syntax

Answer

Correct Answer: Characterization

Note: This Question is unanswered, help us to find answer for this one

208. Cells were first identified as robert hooke observed _____.

Cell

Cork

Energy

Lipids

Answer

Correct Answer: Cork

Note: This Question is unanswered, help us to find answer for this one

209. Cells having matched pairs of chromosomes are _____.

Diploid

Haploid

Homologous

Homozygous

Answer

Correct Answer: Diploid

Note: This Question is unanswered, help us to find answer for this one

210. Bed-wetting is most likely to occur at the end of ________ sleep.

Fast-wave

Slow-wave

Medium-wave

None of these

Answer

Correct Answer: Slow-wave

Note: This Question is unanswered, help us to find answer for this one

211. Because of the property of paleomagnetism, _____.

The orientation of the magnetic field on Earth’s surface

Records of the Earth's magnetic field in rocks have been studied

Are particularly susceptible to being magnetized in this way

None of the above

Answer

Correct Answer: Records of the Earth's magnetic field in rocks have been studied

Note: This Question is unanswered, help us to find answer for this one

212. Because of plate tectonics, about 250 million years ago __________.

Africa and Europe were separate landmasses

The oceans had not formed

There were more than 100 continents

All the landmasses were united in one supercontinent, the Pangaea

Answer

Correct Answer: All the landmasses were united in one supercontinent, the Pangaea

Note: This Question is unanswered, help us to find answer for this one

213. Axons are necessary for neurons to be able to ____.

Receive neural impulses from other neurons

Duplicate themselves

Direct the development of the neuron

Send neural impulses to other neurons

Answer

Correct Answer: Send neural impulses to other neurons

Note: This Question is unanswered, help us to find answer for this one

214. Atp hydrolysis directly powers the movement of _____.

K+out of cells

Na+out of cells

Na+into cells

Ca++into cells

Cl-into cells

Answer

Correct Answer: Na+out of cells

Note: This Question is unanswered, help us to find answer for this one

215. As heat and pressure increase, ductile deformation _____.

Stops occurring

Becomes less likely

Is replaced by elastic deformation

Answer

Correct Answer: Becomes less likely

Note: This Question is unanswered, help us to find answer for this one

216. As energy is transferred among organisms, some escapes from the environment as ____ energy.

Electrical

Heat

Light

Mechanical

Nuclear

Answer

Correct Answer: Heat

Note: This Question is unanswered, help us to find answer for this one

217. As alexander fleming knew, most bacteria fall into one of _____ categories.

One

Two

Three

Four

Answer

Correct Answer: Two

Note: This Question is unanswered, help us to find answer for this one

218. As a result of the punic wars rome __________

Lost its overseas empire

Lost control over most of Italy

Was burned to the ground

Won control over the western Mediterranean

Answer

Correct Answer: Won control over the western Mediterranean

Note: This Question is unanswered, help us to find answer for this one

219. As a result of a severe disturbance, a community will ________.

Secondary consumer

Undergo succession

Living organic material

Fungi and prokaryotes

Answer

Correct Answer: Undergo succession

Note: This Question is unanswered, help us to find answer for this one

220. Antibiotic resistance evolves in bacteria when ________.

The presence of antibiotics favors bacteria that already have genes for resistance

Farmers do not use enough antibiotics in animal feed

The antibiotics create resistance genes in bacteria

The bacteria realize that they need to avoid the antibiotic

Answer

Correct Answer: The presence of antibiotics favors bacteria that already have genes for resistance

Note: This Question is unanswered, help us to find answer for this one

221. Another term for tympanitis (inflammation of the middle ear) is ___________/itis media.

BPPV

Cerumin/o

Answer

Correct Answer: Ot

Note: This Question is unanswered, help us to find answer for this one

222. An individual who carries staph but isn't sick is referred to as _______.

Infected

Resistant

Colonized

Evolving

None of the above

Answer

Correct Answer: Colonized

Note: This Question is unanswered, help us to find answer for this one

223. An appropriate way to close an unsolicited proposal is to _____.

Request a meeting

List your expertise

Repeat the cost of your proposal

All of these

Answer

Correct Answer: Request a meeting

Note: This Question is unanswered, help us to find answer for this one

224. An abnormal plantar reflex in an adult produces babinski's sign, which indicates ________.

Damage to the dorsal columns

Nerve damage to the leg

Damage to the muscles that move the ankle

Damage to the corticospinal tract

Answer

Correct Answer: Damage to the corticospinal tract

Note: This Question is unanswered, help us to find answer for this one

225. Amino acids are needed to build , just as are needed to create dna.

Protein; nucleotides

Fatty acid; hydroxides

Polysaccharides; carboxyl

RNA; glucose monomers

Answer

Correct Answer: Protein; nucleotides

Note: This Question is unanswered, help us to find answer for this one

226. Alpha-linolenic acid and linoleic acid are classified as _________ fatty acids.

Essential

Nonessential

Saturated

Trans

Answer

Correct Answer: Essential

Note: This Question is unanswered, help us to find answer for this one

227. All of the following are issues with lesioning except its __________.

Invasiveness

Availability of technology

Tendency to be painful

Inconsistency in location

Answer

Correct Answer: Availability of technology

Note: This Question is unanswered, help us to find answer for this one

228. All genes are composed of specific sequences of ___________ molecules.

RNA

DNA

Simple

All of these

Answer

Correct Answer: DNA

Note: This Question is unanswered, help us to find answer for this one

229. All dna polymerases synthesize new dna by adding nucleotides to the _____ of the growing dna chain.

3′ OH

5′ OH

3′ phosphate

5′ phosphate

Nitrogenous base

Answer

Correct Answer: 3′ OH

Note: This Question is unanswered, help us to find answer for this one

230. Albumin in the urine can indicate _____ of the urinary tract, particularly the glomeruli.

Obstruction.

Congenital absence.

Inflammation.

Answer

Correct Answer: Obstruction.

Note: This Question is unanswered, help us to find answer for this one

231. Agonists bind to and antagonists bind to .

Receptors; nothing.

Receptors; receptors.

Receptors; the cell membrane.

Answer

Correct Answer: Receptors; nothing.

Note: This Question is unanswered, help us to find answer for this one

232. Agnes has heartburn, which is also called ____.

Pyrosis

Dyspepsia

Gerd

None of these

Answer

Correct Answer: Pyrosis

Note: This Question is unanswered, help us to find answer for this one

233. Agglutinogens are contained on the , whereas the agglutinins are found in the .

Cell membrane of the RBC; plasma

Blood; brain

Cell membrane; intestines

None of these

Answer

Correct Answer: Cell membrane of the RBC; plasma

Note: This Question is unanswered, help us to find answer for this one

234. Agents generating mutation-inducing dna damage are collectively referred to as ________.

DNA

RNA

Mutagens

Simple genes

Answer

Correct Answer: Mutagens

Note: This Question is unanswered, help us to find answer for this one

235. After the migrating neuron reaches its destination, ____ begin to form.

Nuclei

Ganglions

Dendrites

Axons

Answer

Correct Answer: Dendrites

Note: This Question is unanswered, help us to find answer for this one

236. After receiving a reward for escaping the puzzle box, the cats ________.

Appeared to enjoy the box more

Escaped more slowly

Gradually learned to escape more quickly

Increased the length of time in the box

Answer

Correct Answer: Gradually learned to escape more quickly

Note: This Question is unanswered, help us to find answer for this one

237. After drinking alcoholic beverages, increased urine excretion is the result of _____.

Increased aldosterone production

Increased blood pressure

Inhibited secretion of antidiuretic hormone (ADH)

Increased reabsorption of water in the proximal tubule

Answer

Correct Answer: Inhibited secretion of antidiuretic hormone (ADH)

Note: This Question is unanswered, help us to find answer for this one

238. After an economy has reached its peak, it begins the ______ phase of the business cycle.

Trough

Recession

Contraction

Expansion

Answer

Correct Answer: Contraction

Note: This Question is unanswered, help us to find answer for this one

239. Advantages of using algae as a biofuel include _______. select all that apply.

Decreasing the ecological impact of drilling for fossil fuels

Replacing fossil fuels with a renewable source of energy

Producing fuel in a wider range of geographic areas

All of these

Answer

Correct Answer: All of these

Note: This Question is unanswered, help us to find answer for this one

240. Adherence to the intestinal lining by this bacterium is due to its possession of _____.

Fimbriae

Pili

A capsule

A flagellum

Answer

Correct Answer: A capsule

Note: This Question is unanswered, help us to find answer for this one

241. Adenosine triphosphate, or atp, is primarily used as _______ in living organisms.

A muscle relaxing hormone

A source of energy

A blood coagulant

A reproductive enzyme

Answer

Correct Answer: A source of energy

Note: This Question is unanswered, help us to find answer for this one

242. Accumulation of undigested molecules would most directly be an indication of _____ dysfunction.

Ribosome

Mitochondrial

Lysosomal

Chloroplast

Answer

Correct Answer: Mitochondrial

Note: This Question is unanswered, help us to find answer for this one

243. According to lecture, ________ had the highest rate of pathogenic weight practices.

Long-distance runners

Gymnasts

Field hockey players

Tennis

Answer

Correct Answer: Gymnasts

Note: This Question is unanswered, help us to find answer for this one

244. About one in ____ individuals diagnosed with an eating disorder is male.

Answer

Correct Answer: 10

Note: This Question is unanswered, help us to find answer for this one

245. A placenta and viviparity are most likely adaptations for increasing ______.

The base of mammals

Parental care and offspring survival

Tied to the water for reproduction

Reptiles and some mammals

Answer

Correct Answer: Parental care and offspring survival

Note: This Question is unanswered, help us to find answer for this one

246. A pine tree is a _____.

Bryophyte

Gymnosperm

Angiosperm

None of these

Answer

Correct Answer: Gymnosperm

Note: This Question is unanswered, help us to find answer for this one

247. ____________ metamorphic rocks have mineral grains that line up in parallel layers.

Chemical

Foliated

Stone

Basalt

Answer

Correct Answer: Foliated

Note: This Question is unanswered, help us to find answer for this one

248. _______ is an indicator of programmed cell death.

Fragmented chromatin

Swelling of the membrane

Cell lysis

Loss of transcription control

All of the above

Answer

Correct Answer: Fragmented chromatin

Note: This Question is unanswered, help us to find answer for this one

249. ______ are responsible for toxic red tides.

Plasmodial slime molds

Dinoflagellates

Red algae

Diatoms

Answer

Correct Answer: Dinoflagellates

Note: This Question is unanswered, help us to find answer for this one

250. _____ stimulates the release of norepinephrine and dopamine and also blocks their reuptake.

Amphetamine

Cocaine

L-Dopa

Prozac

Answer

Correct Answer: Amphetamine

Note: This Question is unanswered, help us to find answer for this one

251. _ is associated with the fearless-peer experiment. the experiment demonstrates _.

Pavlov; classical conditioning

Bandura; observational learning

Skinner; operant conditioning

Thorndike; latent learning

Answer

Correct Answer: Bandura; observational learning

Note: This Question is unanswered, help us to find answer for this one

252. _____ describes why similar organisms do not interbreed because of a physical barrier.

Allopatric speciation

Asexual reproduction

Sympatric speciation

The biological species concept

Answer

Correct Answer: Allopatric speciation

Note: This Question is unanswered, help us to find answer for this one

253. The gill flap, or operculum, was an important adaptation for fish because it helps with __________.

Adjusting buoyancy

Maintaining a supply of oxygen

Sensing chemicals in water

Sensing vibrations in the water

Answer

Correct Answer: Maintaining a supply of oxygen

Note: This Question is unanswered, help us to find answer for this one

254. Human body cells are approximately ______ water.

95—99%

25—35%

50—55%

70—95%

Answer

Correct Answer: 70—95%

Note: This Question is unanswered, help us to find answer for this one

255. Both prokaryotic and eukaryotic cells use ________ to turn certain genes on or off.

RNA transcriptase

Intron segments

Proteins

Nucleosome packing

Answer

Correct Answer: Proteins

Note: This Question is unanswered, help us to find answer for this one

256. To stay abstinent, one should __________.

Practice refusal skills

Practice avoidance techniques

Set limits and stick to them

All of the above

Answer

Correct Answer: Practice refusal skills

Note: This Question is unanswered, help us to find answer for this one

257. The kingdom described in "the lady, or the tiger?" is _____.

Actual mythical an ancient city which has since been destroyed.

Love and care would motivate the princess to save the young man.

Jealousy would lead the princess to the young man's death.

For the crime of falling in love with the king's daughter.

Answer

Correct Answer: Actual mythical an ancient city which has since been destroyed.

Note: This Question is unanswered, help us to find answer for this one

258. The variation in shape and function of the forelimb in tetrapods is a result of _____.

It displays features found on both aquatic and land-dwelling species

Mutations accumulate at a known rate

A gradual decrease in the number of toes

Different environments leading to the evolution of different types of limbs

Answer

Correct Answer: Different environments leading to the evolution of different types of limbs

Note: This Question is unanswered, help us to find answer for this one

259. The reduction division of meiosis specifically occurs at ________.

Meiosis I

In animals, the membrane pinches inward in the cell center until the cells are separated; in plants, cytokinesis occurs by the fusion of vesicles containing cell wall materials.

Homologous pairs of chromosomes

Have 46 chromosomes

Answer

Correct Answer: Meiosis I

Note: This Question is unanswered, help us to find answer for this one

260. The parasympathetic division is also called the ________ division.

Craniosacral -

Thoracocranial

Craniococcygeal -

Thoracolumbar -

Craniolumbar.

Answer

Correct Answer: Craniosacral -

Note: This Question is unanswered, help us to find answer for this one

261. The membrane potential is hyperpolarized at label ________.

When the line goes under the starting point

When the line is flat at the beginning

Acetylcholine receptors at the neuromuscular junction

At the peak or top

Answer

Correct Answer: When the line goes under the starting point

Note: This Question is unanswered, help us to find answer for this one

262. The scientific explanation for global warming is very dependent on the _______ atom.

Chlorine

Carbon

Oxygen

Hydrogen.

Answer

Correct Answer: Carbon

Note: This Question is unanswered, help us to find answer for this one

263. The gd mat on the fur of the bats should be expected to consist of _____.

Hyphae.

Haustoria.

Yeasts.

Basidia

Answer

Correct Answer: Hyphae.

Note: This Question is unanswered, help us to find answer for this one

264. Metabolic acidosis results in _______.

Loss of bicarbonate, metabolic acidosis

Hyperventilation

To retain carbon dioxide

Carbon dioxide increased

Answer

Correct Answer: Hyperventilation

Note: This Question is unanswered, help us to find answer for this one

265. Storage forms of glucose in living things include _____.

Glycogen and starch

Maltose and sucrose

Fibers and disaccharides

Fats and lactose

Phytates and viscous fibers

Answer

Correct Answer: Glycogen and starch

Note: This Question is unanswered, help us to find answer for this one

266. The fuel used to run our cars contains _______ energy

Potential

Photons

Combustion

Gamma rays

Answer

Correct Answer: Potential

Note: This Question is unanswered, help us to find answer for this one

267. The cracking of rock due to heat is an example of _______.

Erosion

Physical weathering

Chemical weathering

None of the above

Answer

Correct Answer: Physical weathering

Note: This Question is unanswered, help us to find answer for this one

268. Sensory information that arrives at the cns is routed according to the ________ of the stimulus.

Location

Temperature

Nature

Speed

Both A and C

Answer

Correct Answer: Both A and C

Note: This Question is unanswered, help us to find answer for this one

269. Secondary hypertension ____________________. select all that apply.

Has no negative effect on the heart.

Is due to the presence of another disease, such as Cushing's syndrome.

Accounts for 5% to 10% percent of all hypertension cases.

S a blood pressure ≤ 160/100 mm Hg.

Is also known as essential hypertension.

Answer

Correct Answer: Is due to the presence of another disease, such as Cushing's syndrome.

Note: This Question is unanswered, help us to find answer for this one

270. Cutting the left optic nerve in front of the optic chiasm would result in blindness in the ____.

Ight eye

Left eye

Peripheral vision of botheyes

None of these

Answer

Correct Answer: Left eye

Note: This Question is unanswered, help us to find answer for this one

271. During weeks 17-20, quickening occurs, which is when the __________.

Fetus' sense of hearing is developing at a rapid pace

Mother can hear the fetus' heartbeat with headphones

Fetus' heart rate increases to 150 beats per minute

Mother is able to feel the fetus move inside her womb

Answer

Correct Answer: Mother is able to feel the fetus move inside her womb

Note: This Question is unanswered, help us to find answer for this one

272. The body fluids of an osmoconformer would be with its environment

Hyperosmotic; freshwater

Isotonic; freshwater

Hyperosmotic; saltwater

Isoosmotic; saltwater

Hypoosmotic; saltwater

Answer

Correct Answer: Isoosmotic; saltwater

Note: This Question is unanswered, help us to find answer for this one

273. Opportunistic species typically ______.

Have a large number of offspring

A density-independent factor

Few offspring and good parental care

Most individuals survive to older age intervals

Answer

Correct Answer: Have a large number of offspring

Note: This Question is unanswered, help us to find answer for this one

274. In the myogenic response, ________.

Muscle contraction promotes venous return to the heart

Ventricular contraction strength is decreased

Vascular smooth muscle responds to stretch

Endothelins dilate muscular arteries

Answer

Correct Answer: Vascular smooth muscle responds to stretch

Note: This Question is unanswered, help us to find answer for this one

275. (intro) the amount of life on the ocean floor depends primarily on _________.

Sediment thickness

Oxygen supply

The amount of light

Temperature

The productivity of the surface layer above it

Answer

Correct Answer: The productivity of the surface layer above it

Note: This Question is unanswered, help us to find answer for this one

276. The most active form of ____________ is called calcitriol.

Calcitonin

Osteoblastic activity

Vitamin D

Vitamin A

Answer

Correct Answer: Vitamin D

Note: This Question is unanswered, help us to find answer for this one

277. The most important feature that permits a gene to act as a molecular clock is _____.

Being acted upon by natural selection

A recent origin by a gene-duplication event

A reliable average rate of mutation

A large number of base pairs

Answer

Correct Answer: A reliable average rate of mutation

Note: This Question is unanswered, help us to find answer for this one

278. What was an early selective advantage of a coelom in animals? a coelom _____.

Contributed to a hydrostatic skeleton, allowing greater range of motion

Was a more efficient digestive system

Allowed cephalization and the formation of a cerebral ganglion

Allowed asexual and sexual reproduction

Answer

Correct Answer: Contributed to a hydrostatic skeleton, allowing greater range of motion

Note: This Question is unanswered, help us to find answer for this one

279. Unikonta is a supergroup that includes all of the following except _____.

Fungi

Protists

Animals

Plants

Answer

Correct Answer: Plants

Note: This Question is unanswered, help us to find answer for this one

280. Uniform spacing patterns in plants such as the creosote bush are most often associated with _____.

Chance

Patterns of high humidity

The random distribution of seeds

Competitive interaction between individuals of the same population

The concentration of nutrients within the population's range

Answer

Correct Answer: Competitive interaction between individuals of the same population

Note: This Question is unanswered, help us to find answer for this one

281. The evolution of eukaryotic cells most likely involved _____.

Endosymbiosis of an aerobic bacterium in a larger host cell—the endosymbiont evolved into mitochondria

No ribosomes are attached to its surface.

Function of the Golgi apparatus in sorting and directing membrane components

Are formed from products synthesized by the endoplasmic reticulum and processed by the Golgi

Answer

Correct Answer: Endosymbiosis of an aerobic bacterium in a larger host cell—the endosymbiont evolved into mitochondria

Note: This Question is unanswered, help us to find answer for this one

282. Industrial ecologists ________.

Urge an emphasis on internal manufacturing costs rather than external costs

Favor an economy that moves linearly rather than circularly

Primarily analyze industrial inputs

Advocate for taxes on green industries

Redesign industrial systems to maximize physical and economic efficiency

Answer

Correct Answer: Redesign industrial systems to maximize physical and economic efficiency

Note: This Question is unanswered, help us to find answer for this one

283. Ddt, dde, pcbs, and pbdes are all ________.

Non-biodegradable and subject to bioaccumulation and/or biomagnification

A biodegradable and do not persist

Top consumers susceptible to eggshell damage caused by DDT

None of this

Answer

Correct Answer: Non-biodegradable and subject to bioaccumulation and/or biomagnification

Note: This Question is unanswered, help us to find answer for this one

284. Copernicus proposed a heliocentric model for the solar system primarily because ________.

It was much simpler than the Ptolemaic model

It is attractive and increases if their masses increase.

The center of mass and nothing

The shape of a planet's orbit is an ellipse

Answer

Correct Answer: It was much simpler than the Ptolemaic model

Note: This Question is unanswered, help us to find answer for this one

285. To recycle nutrients, an ecosystem must have, at a minimum, _____.

Producers, primary consumers, secondary consumers, and decomposers

Producers

Producers, primary consumers, and decomposers

Producers and decomposers

Answer

Correct Answer: Producers and decomposers

Note: This Question is unanswered, help us to find answer for this one

286. The tract that carries sensations from muscle spindles to the cns is the __________.

Posterior column

Anterior spinothalamic

Lateral spinothalamic

Spinocerebellar

Answer

Correct Answer: Spinocerebellar

Note: This Question is unanswered, help us to find answer for this one

287. The target organ of oxytocin is the smooth muscle of the _____.

Liver

Uterus

Lungs

Pancreas

Answer

Correct Answer: Uterus

Note: This Question is unanswered, help us to find answer for this one

288. The structural framework of a blood clot is formed by __________.

A fibrinogen polymer

Soluble fibrin

A fibrin polymer

Soluble fibrinogen

A thrombin polymer

Answer

Correct Answer: A fibrin polymer

Note: This Question is unanswered, help us to find answer for this one

289. The redundancy of the genetic code is a consequence of ______.

Having more codons than amino acids

Having four different letters (As, Cs, Gs, and Us) in the genetic alphabet

Having fewer codons than there are amino acids

Having three-letter-long genetic words (codons

Having an equal number of codons and amino acids

Answer

Correct Answer: Having more codons than amino acids

Note: This Question is unanswered, help us to find answer for this one

290. The primary difference between enhancers and promoter-proximal elements is that enhancers _____.

Are transcription factors; promoter-proximal elements are DNA sequences

Enhance transcription; promoter-proximal elements inhibit transcription

Are at considerable distances from the promoter; promoter-proximal elements are close to the promoter

Are DNA sequences; promoter-proximal elements are proteins

Answer

Correct Answer: Are at considerable distances from the promoter; promoter-proximal elements are close to the promoter

Note: This Question is unanswered, help us to find answer for this one

291. The behavior of an infant in sensorimotor stage four might best be described as _____.

Goal oriented

Redundant

Stubborn

Unintentional nhinnta anntinue

Deliberate

Answer

Correct Answer: Deliberate

Note: This Question is unanswered, help us to find answer for this one

292. According to the fossil record, plants colonized terrestrial habitats ________.

In conjunction with insects that pollinated them

In conjunction with fungi that helped provide them with nutrients from the soil

To escape abundant herbivores in the oceans

Only about 150 million years ago

Answer

Correct Answer: In conjunction with fungi that helped provide them with nutrients from the soil

Note: This Question is unanswered, help us to find answer for this one

293. Feedlots are a major cause of _________ in water.

The clean water act.

Point source polluters.

Bioremediation.

All of these choices are correct

Answer

Correct Answer: All of these choices are correct

Note: This Question is unanswered, help us to find answer for this one

294. The first stage of embryonic development is _. this process produces _.

Gastrulation ... a three-layered embryo

Ovulation ... a zygote

Cleavage ... a cluster of cells

Neurulation...a neurula

Parturition ... a fetus

Answer

Correct Answer: Cleavage ... a cluster of cells

Note: This Question is unanswered, help us to find answer for this one

295. In fetal circulation the descending aorta carries the less oxygenated blood from the _________.

Ductus arteriosus.

Positive feedback control

Antibodies from the mother's immune system.

None of these

Answer

Correct Answer: Ductus arteriosus.

Note: This Question is unanswered, help us to find answer for this one

296. In a newly fertilized egg, the vitelline layer _____.

Lifts away from the egg and hardens to form a fertilization envelope

Secretes hormones that enhance steroidogenesis by the ovary

Reduces the loss of water from the egg and prevents desiccation

Provides most of the nutrients used by the zygote

Answer

Correct Answer: Lifts away from the egg and hardens to form a fertilization envelope

Note: This Question is unanswered, help us to find answer for this one

297. In a comparison of birds and mammals, having four limbs is _____.

A shared ancestral character

A shared derived character

A character useful for distinguishing birds from mammals

An example of analogy rather than homology

Answer

Correct Answer: A shared ancestral character

Note: This Question is unanswered, help us to find answer for this one

298. Examine the evolutionary tree below. this tree tells us that the amnion is found in ______.

Genetics and evolutionary biology

Lungfishes and amphibians

Plante and fungi

Mammals, lizards, snakes, crocodiles, and birds

Answer

Correct Answer: Mammals, lizards, snakes, crocodiles, and birds

Note: This Question is unanswered, help us to find answer for this one

299. Cleavage as part of embryonic development is distinctive because it involves ________.

Cell division by mitosis with little or no growth between successive divisions

The fusion of gametes

Splitting the cell into two separate cells

Meiosis

Answer

Correct Answer: Cell division by mitosis with little or no growth between successive divisions

Note: This Question is unanswered, help us to find answer for this one

300. As cleavage continues, a zygote forms into a solid multicellular ball called a(n) _____.

Morula

Gastrula

Blastula

Ectoderm

Answer

Correct Answer: Morula

Note: This Question is unanswered, help us to find answer for this one

301. A blastomere is a _ and a blastocyst is _.

Hollow ball of cells; a cell resulting from cleavage

Fetal organ produced by cleavage; an embryonic organ produced by cleavage

Fetal membrane; an embryonic membrane

Cell produced by cleavage; a hollow ball of cells

Answer

Correct Answer: Cell produced by cleavage; a hollow ball of cells

Note: This Question is unanswered, help us to find answer for this one

302. When bapna is hydrolyzed, it _______.

Complexes with starch

Changes from colorless to yellow

Changes from yellow in color to colorless

Produces reducing sugar

Answer

Correct Answer: Changes from colorless to yellow

Note: This Question is unanswered, help us to find answer for this one

303. The decidua basalis is ________.

Destined to remain in the uterus after the birth of the infant

Located between the developing embryo and the myometrium

Not a maternal contribution to the placenta

The tissue that surrounds the uterine cavity face of the implanted embryo

Answer

Correct Answer: Located between the developing embryo and the myometrium

Note: This Question is unanswered, help us to find answer for this one

304. Early work on signal transduction and glycogen metabolism by sutherland indicated that __________.

The signal molecule combined directly with a cytosolic enzyme to form an active quaternary structure

The signal molecule worked equally well with intact or disrupted cells

The signal molecule did not interact directly with the cytosolic enzyme, but required an intact plasma membrane before the enzyme could be activated

The cell-signaling pathway involves two separate steps: transduction and response

Epinephrine is involved in response to stress

Answer

Correct Answer: The signal molecule did not interact directly with the cytosolic enzyme, but required an intact plasma membrane before the enzyme could be activated

Note: This Question is unanswered, help us to find answer for this one

305. Almost all animals except _____ have either radial or bilateral symmetry.

Sponges

Tunicates

Clams

Insects

Answer

Correct Answer: Sponges

Note: This Question is unanswered, help us to find answer for this one

306. The three most abundant classes of nutrients are __________.

Carbohydrates, proteins, and minerals

Fats, proteins, and carbohydrates

Proteins, nucleic acids, and carbohydrates

Triglycerides, starches, and proteins

Proteins, fats, and minerals

Answer

Correct Answer: Fats, proteins, and carbohydrates

Note: This Question is unanswered, help us to find answer for this one

307. The term polytomy refers to a situation in which __________.

A branch point within a phylogenetic tree represents the most recent common ancestor

None of the listed assumptions should be made

Trees should not be used to indicate absolute age unless specifically mentioned to scale

Taxons do not evolve from the taxon they are adjacent to

Answer

Correct Answer: A branch point within a phylogenetic tree represents the most recent common ancestor

Note: This Question is unanswered, help us to find answer for this one

308. The primitive streak in a bird is the functional equivalent of _____.

The blastopore in the frog

The archenteron in a frog.

Polar bodies in a sea .

None of these

Answer

Correct Answer: The blastopore in the frog

Note: This Question is unanswered, help us to find answer for this one

309. The outer-to-inner sequence of tissue layers in a post-gastrulation vertebrate embryo is _____.

Endoderm → ectoderm → mesoderm.

Mesoderm → endoderm → ectoderm.

Ectoderm → mesoderm → endoderm.

Ectoderm → endoderm → mesoderm.

Answer

Correct Answer: Ectoderm → mesoderm → endoderm.

Note: This Question is unanswered, help us to find answer for this one

310. The notochord functions as a core around which mesodermal cells form the frog's _____.

Backbone.

Ectoderm

Blastula

Archenteron

Blastopore

Answer

Correct Answer: Backbone.

Note: This Question is unanswered, help us to find answer for this one

311. The mesoderm gives rise to _____

Skeletal and muscular systems

Cleavage ... a cluster of cells

The membrane of the egg depolarizing

The allantois helps form the umbilical cord in human development.

Answer

Correct Answer: Skeletal and muscular systems

Note: This Question is unanswered, help us to find answer for this one

312. The domain eukarya contain(s) ______ kingdom(s).

One.

Two

Three.

Four.

Answer

Correct Answer: Four.

Note: This Question is unanswered, help us to find answer for this one

313. In the five-kingdom system, prokaryotes are placed in the kingdom _____.

Protista

Reflects evolutionary history

They are sedentary.

Monera

Answer

Correct Answer: Monera

Note: This Question is unanswered, help us to find answer for this one

314. During gastrulation in frogs, a rod of mesoderm under the dorsal surface forms the _____.

Blastopore

Spinal cord

Ectoderm

Notochord

Answer

Correct Answer: Notochord

Note: This Question is unanswered, help us to find answer for this one

315. Birds reptiles and mammals are called amniotes because _____

By itself, give rise to the entire embryo, as cleavage proceeds

They have extra-embryonic membranes that develop an aqueous environment in which development occurs

Cleavage... a cluster of cells

Trophoblast

Answer

Correct Answer: They have extra-embryonic membranes that develop an aqueous environment in which development occurs

Note: This Question is unanswered, help us to find answer for this one

316. At the moment of sperm penetration, human eggs _____.

Have used flagellar propulsion to move from the ovary to the oviduct

Are still located within the ovary

Have a paper-thin cell of calcium carbonate that prevents desiccation

Are still surrounded by follicular cells

Answer

Correct Answer: Are still surrounded by follicular cells

Note: This Question is unanswered, help us to find answer for this one

317. An embryonic cell that is "totipotent" is one that can _____.

Trophoblast

Cleavage... a cluster of cells

By itself, give rise to the entire embryo, as cleavage proceeds

They have extra-embryonic membranes that develop an aqueous environment in which development occurs

Answer

Correct Answer: By itself, give rise to the entire embryo, as cleavage proceeds

Note: This Question is unanswered, help us to find answer for this one

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Basic Biology MCQ

1. The age of the ocean floor is greatest in subduction zones or _____.

2. Preferably, a pre-game meal should be eaten about ________ before an endurance event.

3. In eukaryotes, the normal or default state is that genes are turned _____.

4. Is the accompanying figure dna or rna? ________ is the arrow closest to the 5' or 3' end? ________

5. In cladistics, _______________ is(are) the primary criterion used to classify organisms.

6. The bird says____

7. The critical period for major anomalies is longest for the _____ system.

8. Organisms that possess homologous structures probably __________.

9. Phylogenetic trees can always be regarded as ________ about evolutionary relationships.

10. Paleontologists organize fossils of related species based on their __________________ similarities.

11. The embryonic precursor to the human spinal cord is the _____.

12. Our current ecological footprint __________.

13. One primary advantage of light microscopy over electron microscopy is that ________.

14. The binding of a catecholamine to a beta adrenergic receptor will ________.

15. The fastest way for organisms to adapt to a changing environment involves _____.

16. The energy for sensory transduction by the lateral line system in fish comes from _____.

17. In learning, the basal ganglia ____.

18. Primates enhanced ___________ led to a reduced sense of ___________.

19. In contemporary societies, state governments organize networks of redistribution by __________.

20. People with rem behavior disorder ____.

21. Relative to a ph of 6, a ph of 4 has a ______.

22. Plate tectonics has been responsible for instances of all of the following except ________.

23. Penicillin interferes with __________________, causing bacteria to die from ______________.

24. The enzyme _____ repairs 99% of mismatched bases immediately during replication.

25. The darker the skin of a person, the more likely that some of that person's ancestors _____.

26. The correct order (from start to finish) of fracture repair is __________.

27. The best area to check the adequacy of peripheral circulation is in the _______.

28. The basin and range region in the western united states is aptly named because _____.

29. The basic bilaterian body form plan can be thought of as simply _____.

30. The base of the heart faces in the _____________ directions.

31. The av valves close in response to the ________________________.

32. The autonomic nervous system is subdivided into two branches called the _____ and _____ systems.

33. Replacing lost blood volume with an isotonic saline solution ________.

34. Ren descartes would be considered to hold a ________ view of the mind-body problem.

35. Reefs grow best in _______.

36. Recent research suggests that there is a link between _______ and low-back pain.

37. Rbcs are better known as ________ and wbcs are better known as ___________.

38. Rapid blood loss of ____ quart(s) or more in an adult can lead to shock and death.

39. Pulmonary endo/scop/y is best used to _____________ diseases of the respiratory system.

40. Pubic hair, breasts, facial hair, and deepening of the voice are called _____.

41. Protein is _______ when carbohydrates are scarce.

42. Protein coding genes specify the manufacture of ________ as their immediate product.

43. Proteases digest _____, a nutrient found in foods.

44. Proliferation of lymphocytes occurs immediately after __________.

45. Primary and secondary waves are _____ waves, and love waves are _____ waves.

46. People that will most likely be victims of peer pressure are __________.

47. It is best to say that the protection to properties offered by sea walls along coasts _______.

48. In the average adult, the sudden loss of ________ cc of blood is considered serious.

49. In terms of structural materials, _______ is to plants what _______ is to lobsters and crabs.

50. In theory, each plaque on a plate corresponds to ___________________.

51. The chemical reaction illustrated in the accompanying figure _____.

52. The chief contributors of saturated fatty acids in the u.s. diet include ________.

53. One way scientists can study human migration pathways is by using ____ pathways.

54. Sloths have less muscle than other mammals their size in order to _______.

55. Urine, with a ph of 6, is _________ times more acidic than seawater, with a ph of 8.

56. The nutrient standards used on nutrition facts panels are called ________.

57. The membrane potential is closest to the equilibrium potential for potassium at label _____.

58. The main functional unit, or super organism, of a honeybee hive is the __________.

59. The frank-starling law of the heart is an ____________ property of heart muscle.

60. Some neandertal physical characteristics may have arisen as adaptations to a ______ environment.

61. Shubin and daeschler specifically traveled to ellesmere island to hunt for fossils because _____.

62. S, the selection coefficient, is a relative measure of _________________

63. Ruvc endonuclease resolves holliday junctions according to a patch recombination model if ______?

64. Cells are most stable in _________ environments?

65. Animals that can detect ultraviolet (uv) light differ from humans by having ________.

66. An important source of antioxidants is the ________ found in ________ .

67. A hypothesis must be testable to be scientifically valid. being testable means that _____.

68. ________ prohibits re-initiation of chromosome replication.

69. ____ is a form of vigorous physical activity.

70. _____ aid in the coordination of the activities of adjacent animal cells.

71. Using body mass index (bmi), a bmi of ____ to _____ is defined as overweight.

72. In a comparison of birds and mammals, the condition of having four limbs is __________.

73. Human prenatal development takes ___ weeks.

74. Caspases in mammals, which are similar to _______ in nematodes, are involved in _______.

75. Bones are composed mostly of __________. a. magnesium b. vitamins c. calcium d. cartilage

76. Based on this tree, the lineage leading to ________ was the first to diverge from the other lines.

77. At the onset of the embryonic period, the _____ appears. it will eventually become the neural tube.

78. Arteries are most accurately defined as blood vessels that ________.

79. Archaea has no _________________. as a result, it is unable to form the 30 nm fiber of chromatin.

4. Is the accompanying figure dna or rna? is the arrow closest to the 5' or 3' end?

18. Primates enhanced _ led to a reduced sense of _.

23. Penicillin interferes with ____, causing bacteria to die from .

32. The autonomic nervous system is subdivided into two branches called the _ and _ systems.

37. Rbcs are better known as and wbcs are better known as ___.

45. Primary and secondary waves are _ waves, and love waves are _ waves.

49. In terms of structural materials, _ is to plants what _ is to lobsters and crabs.

66. An important source of antioxidants is the found in .

71. Using body mass index (bmi), a bmi of to _ is defined as overweight.

74. Caspases in mammals, which are similar to _ in nematodes, are involved in _.

80. An ovum bursts from one of a womans two and is drawn into one of two .

84. About ___ babies born to mothers over 40 have .

104. Gene families are groups of ___ genes that arose by _ and _____.

134. Mount saint helens represents an example of , which began with a .