Similar species can coexist in a community by using _________.
Answer
Correct Answer:
Resource partitioning
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In order to prevent contamination of groundwater, landfills must __________.
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.
Answer
Correct Answer:
Glucose
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The characteristic that all lipids have in common is that _____. see concept 5.3 (page 72)
Answer
Correct Answer:
All of these
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In animal populations, ddt causes _____.
Answer
Correct Answer:
Birth defects
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In the ecosystem energy budget, primary productivity is like _____.
Answer
Correct Answer:
Income
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In brightness, jupiter is second only to the planet _____ most of the time.
Answer
Correct Answer:
Venus
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Phagocytosis is exemplified by __________.
Answer
Correct Answer:
Most types of white blood cells ingesting bacteria,
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Translation occurs in the _____.
Answer
Correct Answer:
All of these
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Erosion of most of the grand canyon too place over past ____.
Answer
Correct Answer:
5 million years
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Goal emphasis and work facilitation are _____ leadership behavior dimensions.
Answer
Correct Answer:
Job-centered
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The ______is the portion of the atmosphere in which the ozone shield occurs.
Answer
Correct Answer:
Stratosphere
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The main hypothesis about the origin of the first living organisms is called ________.
Answer
Correct Answer:
Biogenesis.
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In a macrosociological examination of street people, one would study __________.
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.
Answer
Correct Answer:
Framework
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The main homeostatically regulated compartment of the body is __________.
Answer
Correct Answer:
Extracellular fluid
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Conjunctivitis does not directly affect ______.
Answer
Correct Answer:
The conjunctival sac
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Thermal conduction mostly involves the motion of _________.
Answer
Correct Answer:
Electrons
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Huygens' principle features wavefronts that are composed of _________.
Answer
Correct Answer:
Overlapping waves
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________ is the acquired inability to mount an adaptive immune response against self.
Answer
Correct Answer:
Tolerance
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Compared to type a axons, type c axons are __________.
Answer
Correct Answer:
All of the listed responses are correct
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Fts proteins are essential for bacterial cell division because they __________.
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 __________.
Answer
Correct Answer:
Bacterial infection
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Climate represents the ____ behavior of an environmental system.
Answer
Correct Answer:
Long-term
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________ does not generally determine the erosive effectiveness of a stream.
Answer
Correct Answer:
Saltiness
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From his observations of organisms in the galapagos islands, darwin reasoned that _____.
Answer
Correct Answer:
Organisms had adapted to new environments, giving rise to new species
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Ergot poisoning __________.
Answer
Correct Answer:
May cause hallucinogenic symptoms
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Taste receptors are found primarily on the tongue, but may also be found ________.
Answer
Correct Answer:
Soft palate, epiglottis, pharynx, and inner surface of the cheeks.
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Sugars are mainly used by our bodies _____
Answer
Correct Answer:
Fuel
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In a rapidly changing environment, protists tend to reproduce _____.
Answer
Correct Answer:
Via sexual reproduction
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Hybrid zones provide an opportunity to investigate _____.
Answer
Correct Answer:
The evolution of reproductive isolation
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Humans are composed of ______ cells.
Answer
Correct Answer:
Eukaryotic
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Charles darwin _____. see concept 22.2 (page 469)
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)
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 _________.
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 ________.
Answer
Correct Answer:
Hydrogen fusion on the surface of a white dwarf
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According to jackie, __________.
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.
Answer
Correct Answer:
Flows through ... are recycled in
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The right ventricle of the heart pumps ______________blood into the______________.
Answer
Correct Answer:
Deoxygenated, pulmonary arteries
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The results of a test of visual acuity are 20/15. this individual ________.
Answer
Correct Answer:
Has better than normal vision
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The highlighted structure is defined as serving a single ________ segment.
Answer
Correct Answer:
Bronchopulmonary
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The ________ of the microscope carries three or four objective lenses.
Answer
Correct Answer:
Nosepiece
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Motor cortex and somatosensory cortex are _____.
Answer
Correct Answer:
Organized in similar manner adjacent to each other
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The baroreceptor reflex response to high blood pressure is __________.
Answer
Correct Answer:
Vasodilation and decreased cardiac output
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Healthy corals are brightly colored because they _____.
Answer
Correct Answer:
Host symbionts with colorful photosynthetic pigments
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Fluidity of an animal cell plasma membrane is enhanced by __________.
Answer
Correct Answer:
Cholesterol molecules
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Most digestive enzymes catalyze __________ reactions.
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 ______.
Answer
Correct Answer:
30 m/s
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Hyaluronidase and collagenase both allow bacteria to _____.
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 __________.
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.
Answer
Correct Answer:
Small intestine
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In an interrupted mating experiment, the purpose of plating cells on a selective medium is _______.
Answer
Correct Answer:
To ensure that only recombinant genotypes are recovered
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Manufacturers make vegetable oils solid or semisolid by _____.
Answer
Correct Answer:
Adding hydrogens
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The binding of h+ ions to soil particles _____.
Answer
Correct Answer:
Displaces mineral cations,
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Amoebae move by crawling over a surface (cell crawling), which involves ________.
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 _____.
Answer
Correct Answer:
Tertiary consumer
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_____ were the dominant vertebrate life form during the paleozoic era.
Answer
Correct Answer:
Amphibians
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When two monosaccharides link to form a disaccharide, the by-product is __________.
Answer
Correct Answer:
Water
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The anatomical location for the typical union of a sperm and an egg (conception) is the _____.
Answer
Correct Answer:
Oviducts
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According to this graph, the world population doubled between _______.
Answer
Correct Answer:
1930 and 1975
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_____ bind(s) to dna enhancer regions
Answer
Correct Answer:
Activators
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The highly branched structures of lungs, gills, and roots are an adaptation for __________.
Answer
Correct Answer:
Diffusion of molecules and ions across surfaces
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During ventricular systole, the blood pressure __________ and ventricular volume __________.
Answer
Correct Answer:
Increases; decreases
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During gastrulation, a(n) _____ forms.
Answer
Correct Answer:
Simple digestive cavity
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Lipids are insoluble in water because_____.
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.
Answer
Correct Answer:
Rotten eggs
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The ionized or dissociated carboxyl group may be written as __________.
Answer
Correct Answer:
-COO -,
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Cup fungi are in the phylum _____.
Answer
Correct Answer:
Ascomycota
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Molecules that are amphipathic must contain _____.
Answer
Correct Answer:
Both hydrophilic and hydrophobic regions
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Hot spots are usually chosen for nature preserves because they _____.
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 _____.
Answer
Correct Answer:
B
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Coupled transporters that move solutes in the same direction are called _______.
Answer
Correct Answer:
Symporters
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A paramecium is a(n) _____.
Answer
Correct Answer:
Ciliate
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__________ arose very early in hominid evolution; __________ evolved more recently.
Answer
Correct Answer:
Upright posture; large brains
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Breathing faster when we exercise is necessary to expel ______.
Answer
Correct Answer:
Carbon dioxide and bring in more oxygen to support aerobic metabolism.
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Saturn's rings look bright because __________.
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 __________.
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 __________.
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 _______.
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 _________.
Answer
Correct Answer:
Electric field.
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Worldwide, the largest percentage of freshwater readily available to humans is stored in _______.
Answer
Correct Answer:
Pore spaces between rocks and sediments.
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Immediately after the primers have annealed to the target sequence, _______.
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)
Answer
Correct Answer:
One
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The result of the following cross indicates that the genotype of the male parent is _____.
Answer
Correct Answer:
RR.
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Flowering plants first appeared during the _____.
Answer
Correct Answer:
Mesozoic
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Van der waals interactions may result when _____.
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 _____.
Answer
Correct Answer:
Chlamydias
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Nucleoli are present during _____.
Answer
Correct Answer:
Metaphase
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Most of the temperate grassland in north america has been converted to ______.
Answer
Correct Answer:
Farmland
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If the direction of earth's rotation reversed, the most predictable effect would be ________.
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 _____.
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.
Answer
Correct Answer:
Signal molecule
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________ is a compound produced by sponges that can kill ________.
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 ____________.
Answer
Correct Answer:
The 1990's
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Increasing the strength of the stimulus applied to the sensory receptor increased _______.
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 ______.
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 __________.
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, _______.
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 __________.
Answer
Correct Answer:
Pulmonary bypass shunts, which serve to bypass the lungs
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Emotion, motivation, olfaction, behavior, and memory, in humans, are mediated by the _____.
Answer
Correct Answer:
Limbic system
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A knee-jerk reflex that is unusually strong may be caused by ______.
Answer
Correct Answer:
Transmission of excitatory signals from the brain to the neurons that form the femoral
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__________ is the key hormone regulator of the postabsorptive state.
Answer
Correct Answer:
Glucagon
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If one organ is an exaptation of another organ, then these two organs _____.
Answer
Correct Answer:
Are homologous
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The binding of signal molecules to _____ results in the phosphorylation of tyrosines.
Answer
Correct Answer:
C
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Adjusting the ______ increases or decreases the crispness of objects in the photo.
Answer
Correct Answer:
Sharpness
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__________ are lymphocytes that coordinate cellular and humoral immune responses.
Answer
Correct Answer:
T helper cells.
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This animation illustrates the functioning of a _____ protein
Answer
Correct Answer:
Transport
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Inflammatory mediators such as bradykinin and histamine cause blood vessels to _____.
Answer
Correct Answer:
Vasodilate
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The process of blood clotting leads to the formation of _____ a potent mediator of inflammation.
Answer
Correct Answer:
Bradykinin.
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This is an animation of the movement of water and ions through the root ______.
Answer
Correct Answer:
Via the apoplastic route.
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Blood is best classified as connective tissue because _____.
Answer
Correct Answer:
Its cells are separated from each other by an extracellular matrix.
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The major difference between angiosperms and gymnosperms comes from the _____.
Answer
Correct Answer:
Presence or absence of a protective covering over the ovule
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Each water molecule is joined to _____ other water molecules by ____ bonds.
Answer
Correct Answer:
Four ... hydrogen
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Sexual reproduction includes a reproductive pattern called _____.
Answer
Correct Answer:
Hermaphroditism
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In signal transduction, phosphatases _____.
Answer
Correct Answer:
Inactivate protein kinases and turn off the signal transduction
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Throughout most of human history, human population size _____.
Answer
Correct Answer:
Grew very slowly
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The observed distribution of alleles into gametes is an illustration of _____
Answer
Correct Answer:
Mendel's laws of segregation and independent assortment
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The channels that provide for the movement of potassium in the resting neuron are _______.
Answer
Correct Answer:
Leakage
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The benthic zone of aquatic environments is defined as the _____.
Answer
Correct Answer:
Substrate at the bottom
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Saltatory propagation occurs in _________ axons, in which action potentials _________.
Answer
Correct Answer:
Myelinated; move from one node of Ranvier to another
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Passive movement of a solute by a carrier protein is called __________.
Answer
Correct Answer:
Facilitated diffusion
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On an evolutionary tree, __________.
Answer
Correct Answer:
Homologous characteristics form a nested pattern
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In the theme of biological organization, the approach called reductionism __________.
Answer
Correct Answer:
Allows us to reduce complex systems to simpler components that are more manageable to study
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_______ are present in prokaryotes, and bind to and direct the polymerase to specific promoters.
Answer
Correct Answer:
Sigma factors
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_____ are toxins that are the lipopolysaccharide of the outer membrane of gram-negative cell walls.
Answer
Correct Answer:
Endotoxins
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____ provide(s) the information for the assembly of amino acids into a particular protein.
Answer
Correct Answer:
DNA
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A water molecule can bond to up to _____ other water molecules by ____ bonds.
Answer
Correct Answer:
Four ... hydrogen
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Differential gene expression is the result of different cells containing different ______.
Answer
Correct Answer:
Regulatory proteins
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A white blood cell engulfing a bacterium is an example of _____
Answer
Correct Answer:
Phagocytosis
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Increased water reabsorption in the descending limb of the nephron loop will result in __________.
Answer
Correct Answer:
Increased NaCl reabsorption in the ascending limb
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Zygosporangia are _____.
Answer
Correct Answer:
Heterokaryotic
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In glycolysis, atp molecules are produced by _____.
Answer
Correct Answer:
Substrate-level phosphorylation
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Endocytosis moves materials _____ a cell via
Answer
Correct Answer:
Into ... membranous vesicles
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When interspecific competition has an outcome called competitive exclusion, _________.
Answer
Correct Answer:
The inferior competitor will be eliminated
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Two fundamental concepts about the ion channels of a ""resting"" neuron are that the channels _____.
Answer
Correct Answer:
Open and close depending on stimuli and are specific as to which ion can traverse them
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Trace elements _____.
Answer
Correct Answer:
Are required in very small amounts
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This pair of molecules are _____.
Answer
Correct Answer:
Isomers
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The wing of a penguin is ________ the wing of a butterfly.
Answer
Correct Answer:
Analogous to
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These molecules are _____.
Answer
Correct Answer:
Structural isomers
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