Which of the following best explains the decline in amphibian species?
a. the loss of both aquatic and terrestrial habitats
b. overexploitation in the fishing industry
c. sharp fluctuations in global temperatures
d. introduction of predatory species
a. the loss of both aquatic and terrestrial habitats
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Despite great diversity, vertebrates share features of which the following basic homeostatic
mechanisms across all lineages?
a. Digestion b. Metabolism c. Respiration d. Digestion and metabolism e. Digestion, metabolism and respiration
Marjorie Weber and Anurag Agrawal of Cornell University hypothesized that parts of a plant do not play a direct role in reproduction but act as a "protection racket." What is "protection racket"?
A. the plant's ability to swat off predators B. the plant's ability to attract insects to feed from the nectar and protect the plant at the same time C. the plant's ability to attract insects that could potentially harm it D. the insect's ability to evade the plant's defenses E. the insect's ability to accidently fertilize the plant while feeding on the nectar
Natural selection is most nearly the same as
A) diploidy. B) gene flow. C) genetic drift. D) non-random mating. E) differential reproductive success.
The mode of action of an antimicrobial agent refers to
A) killing of all microorganisms. B) inhibition of growth of bacteria. C) how it exerts its effects upon microorganisms. D) the broad spectrum of activity of the antimicrobial agent