Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Natural selection causes a. | changes in the environment. | b. | plants and
animals to produce more offspring than can survive. | c. | changes in the
frequency of certain alleles in a population. | d. | All of the
above | | |
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2.
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The
hypothesis that evolution occurs at an irregular rate through geologic time is known
as a. | directional
evolution. | c. | punctuated
equilibrium. | b. | directional equilibrium. | d. | punctuated evolution. | | | | |
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3.
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Mycobacterium tuberculosis a. | always responds to antibiotics. | b. | can mutate and
become resistant to antibiotics. | c. | is a harmless organism that normally occurs in human
lungs. | d. | has never responded to antibiotics. | | |
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4.
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The
accumulation of differences between species or populations is called a. | gradualism. | c. | divergence. | b. | adaptation. | d. | differentiation. | | | | |
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5.
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Populations of the same species that differ genetically because they have adapted to
different living conditions are known as a. | selected populations. | c. | genetic populations. | b. | subspecies. | d. | genetic
races. | | | | |
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