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Biology MCQ

Similar species can coexist in a community by using _________.

Competitive exclusion

Predation

Resource partitioning

A demographic transition

Character displacement

Answer

Correct Answer: Resource partitioning

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

In order to prevent contamination of groundwater, landfills must __________.

Be at least 2 meters above the water table

Be at least 4 meters above the water table

Be at least 6 meters above the water table

Be at least 8 meters above the water table

Answer

Correct Answer: Be at least 6 meters above the water table

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In the embden-meyerhof pathway, one mole of _____ is converted into two moles of pyruvic acid.

Pyruvate

Hydrogen gas

Glucose

Carbon dioxide

Answer

Correct Answer: Glucose

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

The characteristic that all lipids have in common is that _____. see concept 5.3 (page 72)

None of them dissolves in water

Almost all the covalent bonds in lipids are nonpolar

Causing their solubility in water to be extremely low

Lipids are hydrophobic substances.

All of these

Answer

Correct Answer: All of these

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In animal populations, ddt causes _____.

Birth defects

Tuberculosis

Sleeping sickness

The flu

Malaria

Answer

Correct Answer: Birth defects

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In the ecosystem energy budget, primary productivity is like _____.

Debt

Income

The interest rate

Spending

Answer

Correct Answer: Income

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In brightness, jupiter is second only to the planet _____ most of the time.

Mars

Venus

Uranus

Jupiter

Saturn

Answer

Correct Answer: Venus

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

Phagocytosis is exemplified by __________.

Most types of white blood cells ingesting bacteria,

Transverse plane

Latin and greek

Golgi apparatus

Answer

Correct Answer: Most types of white blood cells ingesting bacteria,

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Translation occurs in the _____.

Cytoplasm

Ribosomes

The sites of translation

Found in the cytoplasm

All of these

Answer

Correct Answer: All of these

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Erosion of most of the grand canyon too place over past ____.

5 million years

60 million years

550 million years

1.7 billion years

Answer

Correct Answer: 5 million years

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Goal emphasis and work facilitation are _____ leadership behavior dimensions.

Job-centered

Interpersonal

Employee-centered

Intrapersonal

Answer

Correct Answer: Job-centered

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The ______is the portion of the atmosphere in which the ozone shield occurs.

Stratosphere

Troposhere

Thermosphere

Mesosphere

Answer

Correct Answer: Stratosphere

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

The main hypothesis about the origin of the first living organisms is called ________.

Biogenesis.

Retrovirus

They lack a nucleus.

Primordial Earth

Answer

Correct Answer: Biogenesis.

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

In a macrosociological examination of street people, one would study __________.

As a social institution involved in passing on knowledge

Where they fit within the American class system

Are different from one another

Typical ways a society gets things done

Answer

Correct Answer: Where they fit within the American class system

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As the author puts it, social structure is the __________ in our lives.

Meme

Topsoil

Big tent

Framework

Answer

Correct Answer: Framework

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The main homeostatically regulated compartment of the body is __________.

Intracellular fluid

Extracellular fluid

Fluid within neurons in the brain

Fluid within the cavities (lumens) of hollow organs

Answer

Correct Answer: Extracellular fluid

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Conjunctivitis does not directly affect ______.

The superior palpebra

The inferior palpebra

The white of the eye

The conjunctival sac

Answer

Correct Answer: The conjunctival sac

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Thermal conduction mostly involves the motion of _________.

Radiation

Protons

Electrons

Neutrons

Answer

Correct Answer: Electrons

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Huygens' principle features wavefronts that are composed of _________.

Refracted waves

Refracted and reflected waves

Larger wave fronts

Overlapping waves

Answer

Correct Answer: Overlapping waves

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________ is the acquired inability to mount an adaptive immune response against self.

Immunogenicity

Specificity

Tolerance

Memory

Answer

Correct Answer: Tolerance

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

Compared to type a axons, type c axons are __________.

Slower propagating

Smaller diameter

Unmyelinated

All of the listed responses are correct

Answer

Correct Answer: All of the listed responses are correct

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Fts proteins are essential for bacterial cell division because they __________.

Are responsible for pulling apart the two copies of the chromosome

Are responsible for peptidoglycan synthesis

Are responsible for forming the divisome

All of the listed responses are correct

Answer

Correct Answer: All of the listed responses are correct

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Fluoroquinolones are the treatment prescribed for otitis externa, which is due to a __________.

Methicillin infection

Vaccination infection

Bacterial infection

Canker infection

Answer

Correct Answer: Bacterial infection

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

Climate represents the ____ behavior of an environmental system.

Common

Irreversible

Long-term

Short-term

Unchangeable

Answer

Correct Answer: Long-term

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________ does not generally determine the erosive effectiveness of a stream.

Sheet erosion

Capacity

Saltiness

All of these

Answer

Correct Answer: Saltiness

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From his observations of organisms in the galapagos islands, darwin reasoned that _____.

It is general enough to provide many testable hypotheses

Organisms had adapted to new environments, giving rise to new species

Body parts that are not used deteriorate over time

Organisms only go extinct when catastrophes occur

Answer

Correct Answer: Organisms had adapted to new environments, giving rise to new species

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Ergot poisoning __________.

Is caused by the ingestion of contaminated peanuts

May cause hallucinogenic symptoms

Contributes to liver cirrhosis and cancer

Is a disease caused by the fungus Aspergillus flavus

Answer

Correct Answer: May cause hallucinogenic symptoms

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Taste receptors are found primarily on the tongue, but may also be found ________.

Soft palate, epiglottis, pharynx, and inner surface of the cheeks.

Still present, but can no longer be detected.

Aldosterone, cortisol, and androgens

Lacrimal gland, lacrimal canaliculi, lacrimal sac, and the naso lacrimal duct.

Answer

Correct Answer: Soft palate, epiglottis, pharynx, and inner surface of the cheeks.

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Sugars are mainly used by our bodies _____

Glycogen

Insulin

Fuel

Plants

Answer

Correct Answer: Fuel

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In a rapidly changing environment, protists tend to reproduce _____.

Via fission

Via sexual reproduction

Via asexual reproduction

Via cloning

Answer

Correct Answer: Via sexual reproduction

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Hybrid zones provide an opportunity to investigate _____.

Mutations

The evolution of reproductive isolation

Punctuated equilibrium

Polyploidy

Allopatric speciation

Answer

Correct Answer: The evolution of reproductive isolation

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Humans are composed of ______ cells.

Plant

Bacterial

Eukaryotic

Prokaryotic

Answer

Correct Answer: Eukaryotic

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Charles darwin _____. see concept 22.2 (page 469)

Proposed natural selection as the mechanism of evolution

Was the first person to conclude that organisms evolve

Was the first to realize that fossils are remains of ancient organisms

Proposed that unused parts of the body deteriorate

Eagerly published his theory before it was well-developed

Answer

Correct Answer: Proposed natural selection as the mechanism of evolution

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An acid is a substance that _____. see concept 3.3 (page 51)

Reduces the hydrogen ion concentration of a solution

Forms covalent bonds with other substances

Is a versatile solvent

Increases the hydrogen ion concentration of an aqueous solution

Contains hydrogen

Answer

Correct Answer: Increases the hydrogen ion concentration of an aqueous solution

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Based on their inability to detect stellar parallax, the ancient greeks concluded that _________.

Rises in the east, sets in the west each day

Parallax shift decreases as the star's distance from Earth increases

Either Earth is the center of the universe, or stars are extremely far away

Telescope that orbits the Sun in the outer solar system

Answer

Correct Answer: Either Earth is the center of the universe, or stars are extremely far away

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According to present understanding, a nova is caused by ________.

Carbon fusion in the core of a white dwarf

Hydrogen fusion on the surface of a neutron star

Hydrogen fusion on the surface of a white dwarf

A white dwarf that gains enough mass to exceed the 1.4-solar-mass limit

Answer

Correct Answer: Hydrogen fusion on the surface of a white dwarf

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According to jackie, __________.

The green light illuminates her before the red light because she sees the green light flash first

The green light and red light reach you at the same time

The green light reaches Jackie before the red light reaches her

The green light and red light both flash at the same time

Answer

Correct Answer: The green light illuminates her before the red light because she sees the green light flash first

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On a global scale, energy _ ecosystems whereas chemical elements _ ecosystems.

Is biologically magnified in ... are recycled in

Is dissipated in ... flow through

Flows through ... are recycled in

Is continuously supplied to ... are continuously removed from

Answer

Correct Answer: Flows through ... are recycled in

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The right ventricle of the heart pumps blood into the.

Stroke volume (SV)

Deoxygenated, pulmonary arteries

Cardiac output and stroke volume

Isovolumetric contraction (phase 2)

Answer

Correct Answer: Deoxygenated, pulmonary arteries

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The results of a test of visual acuity are 20/15. this individual ________.

Autonomic reflex

Somatic reflex

Has better than normal vision

Protecting the retina from damage by bright light

Answer

Correct Answer: Has better than normal vision

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The highlighted structure is defined as serving a single ________ segment.

Bronchopulmonary

Pharyngeal tonsil

Cervical nodes

Abdominal aorta

Answer

Correct Answer: Bronchopulmonary

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The ________ of the microscope carries three or four objective lenses.

Arm

Base

Ocular

Explanation

Nosepiece

Answer

Correct Answer: Nosepiece

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Motor cortex and somatosensory cortex are _____.

Organized in similar manner adjacent to each other

Circadian rhythm.

Tactile structures

A person is no longer aware of a heavy necklace that was put on earlier in the day

Answer

Correct Answer: Organized in similar manner adjacent to each other

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The baroreceptor reflex response to high blood pressure is __________.

Vasodilation and decreased cardiac output

Vasoconstriction and decreased cardiac output

Vasodilation and increased cardiac output

Vasoconstriction and increased cardiac output

Answer

Correct Answer: Vasodilation and decreased cardiac output

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Healthy corals are brightly colored because they _____.

Secrete colorful pigments to attract mates

Host symbionts with colorful photosynthetic pigments

Build their skeletons from colorful minerals

Secrete colorful pigments to protect themselves from ultraviolet light

Answer

Correct Answer: Host symbionts with colorful photosynthetic pigments

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Fluidity of an animal cell plasma membrane is enhanced by __________.

Functions.

Oxygen and carbon dioxide.

Cholesterol molecules

None f this

Answer

Correct Answer: Cholesterol molecules

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Most digestive enzymes catalyze __________ reactions.

Hydrophobic

Propulsion

Hydrolysis

Dehydration synthesis

Answer

Correct Answer: Hydrolysis

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A ball freely falling at 20 m/s will in the next second have a speed of ______.

The book hits the ground first.

30 m/s

12.5 km

Answer

Correct Answer: 30 m/s

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Hyaluronidase and collagenase both allow bacteria to _____.

Invade a host's tissues - Hyaluronidase allows bacteria to pass between cells, and collagenase degrades connective tissue. pg.428

A lysosome - Chemicals that prevent lysosomes from fusing to phagosomes essentially prevent the lytic enzymes of the phagocyte from destroying the bacterium.

Can more easily infect hosts and cause disease - bs question

None of this

Answer

Correct Answer: Invade a host's tissues - Hyaluronidase allows bacteria to pass between cells, and collagenase degrades connective tissue. pg.428

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Complementation analysis is used to determine __________.

Whether two mutations that produce the same phenotype reside in the same or different genes

9:3:4, 9:7

Epistasis

All of this

Answer

Correct Answer: Whether two mutations that produce the same phenotype reside in the same or different genes

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Bacteria present in the __________ can be phagocytosed by paneth cells.

Stomach

Small intestine

Mouth

Large intestine

Answer

Correct Answer: Small intestine

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In an interrupted mating experiment, the purpose of plating cells on a selective medium is _______.

To determine the genes present in the Hfr

To ensure that only recombinant genotypes are recovered

To eliminate all recipient cells

To ensure that conjugation has been completed

Answer

Correct Answer: To ensure that only recombinant genotypes are recovered

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Manufacturers make vegetable oils solid or semisolid by _____.

AMONO acid molecules.

Carboxylic acid.

Acid........amino

Amino acid molecules.

Adding hydrogens

Answer

Correct Answer: Adding hydrogens

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The binding of h+ ions to soil particles _____.

Is counteracted by acid precipitation,

Displaces mineral cations,

Promotes the clumping of soil particles,

Displaces mineral anions, or

Displaces nitrates from soil particles

Answer

Correct Answer: Displaces mineral cations,

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Amoebae move by crawling over a surface (cell crawling), which involves ________.

Growth of actin filaments to form bulges in the plasma membrane.

Microtubules and motor proteins.

It regulates the movement of proteins and RNA's into and out of the nucleus.

None of this

Answer

Correct Answer: Growth of actin filaments to form bulges in the plasma membrane.

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A seal that just ate a clam is eaten by a shark. the shark is acting as a _____.

Tertiary consumer

Secondary consumer

Primary consumer

Detritivore

Answer

Correct Answer: Tertiary consumer

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_____ were the dominant vertebrate life form during the paleozoic era.

Dinosaurs

Precambrian

3.7 billion years

Amphibians

Paleozoic

Answer

Correct Answer: Amphibians

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When two monosaccharides link to form a disaccharide, the by-product is __________.

Glucose

Fructose

Oxygen

Gas

Water

Answer

Correct Answer: Water

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The anatomical location for the typical union of a sperm and an egg (conception) is the _____.

Oviducts

Vagina

Ovaries

Uterus

Clitoris

Answer

Correct Answer: Oviducts

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According to this graph, the world population doubled between _______.

1975 and 2000

1900 and 1925

1930 and 1975

1850 and 1950

Answer

Correct Answer: 1930 and 1975

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_____ bind(s) to dna enhancer regions

Repressors

Activators

Alternative Splicing

Enhancers

Answer

Correct Answer: Activators

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The highly branched structures of lungs, gills, and roots are an adaptation for __________.

The concentration gradient; ATP

Diffusion of molecules and ions across surfaces

Round the clay up into a sphere.

If the ion concentration is greater inside the cell than outside

Answer

Correct Answer: Diffusion of molecules and ions across surfaces

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During ventricular systole, the blood pressure and ventricular volume .

Increases; decreases

Decreases; increases

Increases; increases

None of these

Answer

Correct Answer: Increases; decreases

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During gastrulation, a(n) _____ forms.

Simple digestive cavity

Diploid, except for gametes

An ovum and three polar bodies

Oxytocin and prostaglandins

Answer

Correct Answer: Simple digestive cavity

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Lipids are insoluble in water because_____.

They contain nonpolar C-C and C-H bonds

15 protons and 15 electrons

The reactants are more ordered than the products.

Answer

Correct Answer: They contain nonpolar C-C and C-H bonds

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Greasy, frothy diarrhea with the smell of __________ may indicate giardiasis.

Rotting flesh

Skunk

Fish

Rotten eggs

Answer

Correct Answer: Rotten eggs

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The ionized or dissociated carboxyl group may be written as __________.

-O -,

-COO -,

-NH4 -,

.-C=O.

Answer

Correct Answer: -COO -,

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Cup fungi are in the phylum _____.

Zygomycota

Chytridomycota

Ascomycota

Chordata

Basidiomycota

Answer

Correct Answer: Ascomycota

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Molecules that are amphipathic must contain _____.

Both hydrophilic and hydrophobic regions

Carbon rings

Glycerol

Both carbohydrates and lipids

Answer

Correct Answer: Both hydrophilic and hydrophobic regions

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Hot spots are usually chosen for nature preserves because they _____.

Habitat alteration, fragmentation, and destruction

Greater than its reproductive rate

Save habitat for threatened and endangered species

None of this

Answer

Correct Answer: Save habitat for threatened and endangered species

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In the accompanying image, a nucleotide is indicated by the letter _____.

Nucleotide

C, D, and E

Answer

Correct Answer: B

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Coupled transporters that move solutes in the same direction are called _______.

Symporters

Uniporters

Isoporters

Antiporters

Answer

Correct Answer: Symporters

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A paramecium is a(n) _____.

Ciliate

Apicomplexan

Diatom

Metazoan

Dinoflagellate.

Answer

Correct Answer: Ciliate

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arose very early in hominid evolution; evolved more recently.

A swim bladder

Chondrichthyes

Arboreal

Upright posture; large brains

Answer

Correct Answer: Upright posture; large brains

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Breathing faster when we exercise is necessary to expel ______.

Carbon dioxide and bring in more oxygen to support aerobic metabolism.

Citric acid cycle

NAD+

Water and carbon dioxide

The sun

Answer

Correct Answer: Carbon dioxide and bring in more oxygen to support aerobic metabolism.

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Saturn's rings look bright because __________.

Lots of individual particles of ice and rock

Light from the Sun reflects off the material in the rings

Its elliptical orbit causes the tidal force to vary as Io orbits Jupiter.

Hydrogen; cloud layer

Answer

Correct Answer: Light from the Sun reflects off the material in the rings

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Complete the following sentence. the operation of the na+/k+ atpase pump __________.

Moves 3 Na+ to the ECF and 2 K+ to the cytoplasm

The pumps move more Na+ than K+, which counteracts the effect of the membrane's being more permeable to K+ (more K+ leak channels than Na+).

The receiving neuron is less likely to generate an action potential

Answer

Correct Answer: Moves 3 Na+ to the ECF and 2 K+ to the cytoplasm

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Increased muscle fiber endurance can be produced by __________.

The type of activity performed

Have many nuclei

They are large in diameter

Sarcomere length increases

Answer

Correct Answer: The type of activity performed

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When a cue ball strikes an 8 ball head-on in a game of pool, the cue ball _______.

Remains the same.

Greater with the brick wall.

Transfers its momentum to the 8 ball.

Greater than the magnitude of momentum of either car before collision.

Answer

Correct Answer: Transfers its momentum to the 8 ball.

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The entity that travels about the speed of light in an electric circuit is _________.

Electric field.

Energy

Pressure

Temperature

Answer

Correct Answer: Electric field.

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Worldwide, the largest percentage of freshwater readily available to humans is stored in _______.

Pore spaces between rocks and sediments.

The nature of the surface material

The steepness of the slope

Intensity of rainfall

Answer

Correct Answer: Pore spaces between rocks and sediments.

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Immediately after the primers have annealed to the target sequence, _______.

The temperature is raised so that taq polymerase can extend the p

Agrobacterium injects Ti plasmid into plant cells upon infection.

GWAS attempt to identify genes that influence disease risk.

To separate the double‑stranded DNA

Answer

Correct Answer: The temperature is raised so that taq polymerase can extend the p

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There is(are) _____ eukaryotic domain(s)

One

Monophyletic

Taxonomy

Monophyletic.

Answer

Correct Answer: One

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The result of the following cross indicates that the genotype of the male parent is _____.

RR.

Ttpp

AaBb x AaBb

Short, white

Answer

Correct Answer: RR.

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Flowering plants first appeared during the _____.

Paleozoic

Mesozoic

Cenozoic

Precambrian

Answer

Correct Answer: Mesozoic

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Van der waals interactions may result when _____.

A hydrogen atom loses an electron

Electrons are not symmetrically distributed in a molecule

Two polar covalent bonds react

Molecules held by ionic bonds react with water

Answer

Correct Answer: Electrons are not symmetrically distributed in a molecule

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The innermost electron shell of an atom can hold up to _____ electrons

Answer

Correct Answer: 2

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Organisms that can cause nongonococcal urethritis are classified with _____.

Transduction

Chemoautotrophs

Chlamydias

None of these

Answer

Correct Answer: Chlamydias

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Nucleoli are present during _____.

Metaphase

Anaphase

Interphase

Prometaphase

Prophase.

Answer

Correct Answer: Metaphase

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Most of the temperate grassland in north america has been converted to ______.

Aphotic zone

Population

Farmland

Photic zone

Answer

Correct Answer: Farmland

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If the direction of earth's rotation reversed, the most predictable effect would be ________.

Depth of water and rate of water movement

The turnovers bring nutrient-rich water from the bottom of the lake up to the top of the lake.

Community the water of the button

Winds blowing from west to east along the equator

Answer

Correct Answer: Winds blowing from west to east along the equator

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Feathers either play a role, or may have played a role, in _____.

Is rapid speciation under conditions in which there is little competition.

Extensive

The populations will not be able to interbreed because they are different species.

Increased fitness of large-beaked birds, leading to natural selection

Answer

Correct Answer: Is rapid speciation under conditions in which there is little competition.

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A signal transduction pathway is initiated when a _____ binds to a receptor.

Signal molecule

Cyclic AMP

Tyrosine kinase

G protein

Calmodulin

Answer

Correct Answer: Signal molecule

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is a compound produced by sponges that can kill .

Penicillin; tapeworms

Choanostatin; cancer cells and drug-resistant strains of Streptococcus

Cribrostatin; cancer cells and drug-resistant strains of Streptococcus

Cribrostatin; tapeworms

Penicillin; drug-resistant strains of Streptococcus

Answer

Correct Answer: Cribrostatin; cancer cells and drug-resistant strains of Streptococcus

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The first confirmed detections of extrasolar planets occurred in ____________.

The 1880's

The 1990's

The 1998's

The 1992's

Answer

Correct Answer: The 1990's

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Increasing the strength of the stimulus applied to the sensory receptor increased _______.

The frequency of action potentials

Initial segment of the axon

Voltage-gated Na+ channels

Sodium-potassium pump

Answer

Correct Answer: The frequency of action potentials

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In an ischemic heart, the affected cardiac muscle cells are likely to have an altered ______.

Number of Z disc

Number of desmosomes

Number of slow Ca+2 channels

Resting member potential

Answer

Correct Answer: Resting member potential

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All of the following might lead to a disease caused by an opportunistic pathogen except __________.

Leukopenia. Nausea, lethargy, and itching are all symptoms and, by definition, would not be present in an asymptomatic individual; however, signs such as leukopenia could still be present and detectable by the appropriate tests.

An encounter with an infected animal. Immune suppression, changes in one's diet, and hormonal changes can all lead to an opportunistic infection sulting in disease.

They contain chemicals that are lethal to phagocytes.

Indirect contact transmission. Inanimate objects, also known as fomites, are instrumental in the spread of pathogens by indirect contact transmission.

Answer

Correct Answer: An encounter with an infected animal. Immune suppression, changes in one's diet, and hormonal changes can all lead to an opportunistic infection sulting in disease.

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Without surfactant, _______.

The surface tension of the liquid in the alveoli would be greater and the alveoli would collapse.

Less than the pressure in the alveoli and less than atmospheric pressure

Intrapleural pressure

Carbon dioxide increased

Answer

Correct Answer: The surface tension of the liquid in the alveoli would be greater and the alveoli would collapse.

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The foramen ovale and the ductus arteriosus are both examples of __________.

Pulmonary bypass shunts, which serve to bypass the lungs

Cells of the somatic mesoderm, which help to form the dermis of the skin

Venous shunts, which serve to bypass the liver sinusoids

Cells of the mesoderm that form the heart and blood vessels

Answer

Correct Answer: Pulmonary bypass shunts, which serve to bypass the lungs

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Biology MCQ

Similar species can coexist in a community by using _________.

In order to prevent contamination of groundwater, landfills must __________.

In the embden-meyerhof pathway, one mole of _____ is converted into two moles of pyruvic acid.

The characteristic that all lipids have in common is that _____. see concept 5.3 (page 72)

In animal populations, ddt causes _____.

In the ecosystem energy budget, primary productivity is like _____.

In brightness, jupiter is second only to the planet _____ most of the time.

Phagocytosis is exemplified by __________.

Translation occurs in the _____.

Erosion of most of the grand canyon too place over past ____.

Goal emphasis and work facilitation are _____ leadership behavior dimensions.

The ______is the portion of the atmosphere in which the ozone shield occurs.

The main hypothesis about the origin of the first living organisms is called ________.

In a macrosociological examination of street people, one would study __________.

As the author puts it, social structure is the __________ in our lives.

The main homeostatically regulated compartment of the body is __________.

Conjunctivitis does not directly affect ______.

Thermal conduction mostly involves the motion of _________.

Huygens' principle features wavefronts that are composed of _________.

________ is the acquired inability to mount an adaptive immune response against self.

Compared to type a axons, type c axons are __________.

Fts proteins are essential for bacterial cell division because they __________.

Fluoroquinolones are the treatment prescribed for otitis externa, which is due to a __________.

Climate represents the ____ behavior of an environmental system.

________ does not generally determine the erosive effectiveness of a stream.

From his observations of organisms in the galapagos islands, darwin reasoned that _____.

Ergot poisoning __________.

Taste receptors are found primarily on the tongue, but may also be found ________.

Sugars are mainly used by our bodies _____

In a rapidly changing environment, protists tend to reproduce _____.

Hybrid zones provide an opportunity to investigate _____.

Humans are composed of ______ cells.

Charles darwin _____. see concept 22.2 (page 469)

An acid is a substance that _____. see concept 3.3 (page 51)

Based on their inability to detect stellar parallax, the ancient greeks concluded that _________.

According to present understanding, a nova is caused by ________.

According to jackie, __________.

On a global scale, energy _____ ecosystems whereas chemical elements _____ ecosystems.

The right ventricle of the heart pumps ______________blood into the______________.

The results of a test of visual acuity are 20/15. this individual ________.

The highlighted structure is defined as serving a single ________ segment.

The ________ of the microscope carries three or four objective lenses.

Motor cortex and somatosensory cortex are _____.

The baroreceptor reflex response to high blood pressure is __________.

Healthy corals are brightly colored because they _____.

Fluidity of an animal cell plasma membrane is enhanced by __________.

Most digestive enzymes catalyze __________ reactions.

A ball freely falling at 20 m/s will in the next second have a speed of ______.

Hyaluronidase and collagenase both allow bacteria to _____.

Complementation analysis is used to determine __________.

Bacteria present in the __________ can be phagocytosed by paneth cells.

In an interrupted mating experiment, the purpose of plating cells on a selective medium is _______.

Manufacturers make vegetable oils solid or semisolid by _____.

The binding of h+ ions to soil particles _____.

Amoebae move by crawling over a surface (cell crawling), which involves ________.

A seal that just ate a clam is eaten by a shark. the shark is acting as a _____.

_____ were the dominant vertebrate life form during the paleozoic era.

When two monosaccharides link to form a disaccharide, the by-product is __________.

The anatomical location for the typical union of a sperm and an egg (conception) is the _____.

According to this graph, the world population doubled between _______.

_____ bind(s) to dna enhancer regions

The highly branched structures of lungs, gills, and roots are an adaptation for __________.

During ventricular systole, the blood pressure __________ and ventricular volume __________.

During gastrulation, a(n) _____ forms.

Lipids are insoluble in water because_____.

Greasy, frothy diarrhea with the smell of __________ may indicate giardiasis.

The ionized or dissociated carboxyl group may be written as __________.

Cup fungi are in the phylum _____.

Molecules that are amphipathic must contain _____.

Hot spots are usually chosen for nature preserves because they _____.

In the accompanying image, a nucleotide is indicated by the letter _____.

Coupled transporters that move solutes in the same direction are called _______.

A paramecium is a(n) _____.

__________ arose very early in hominid evolution; __________ evolved more recently.

Breathing faster when we exercise is necessary to expel ______.

Saturn's rings look bright because __________.

Complete the following sentence. the operation of the na+/k+ atpase pump __________.

Increased muscle fiber endurance can be produced by __________.

When a cue ball strikes an 8 ball head-on in a game of pool, the cue ball _______.

On a global scale, energy _ ecosystems whereas chemical elements _ ecosystems.

The right ventricle of the heart pumps blood into the.

During ventricular systole, the blood pressure and ventricular volume .

arose very early in hominid evolution; evolved more recently.

is a compound produced by sponges that can kill .