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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Refer
to the illustration above. The bones labeled A are known as a. | vestigial
structures. | c. | homologous
structures. | b. | sequential structures. | d. | fossil structures. | | | | |
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3.
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A
human embryo exhibits all of the following during development except a. | pharyngeal
pouches. | c. | fins. | b. | a bony tail. | d. | a coat of fine fur. | | | | |
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4.
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Rifampin, the antibiotic commonly used to treat tuberculosis, acts by a. | mutating
bacterial RNA. | b. | preventing bacteria from dividing. | c. | mutating
bacterial polymerase genes. | d. | preventing bacterial mRNA
transcription. | | |
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5.
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In
order to fit into their habitat, the Galapágos finches had a. | not
changed. | c. | evolved. | b. | migrated. | d. | None of the above | | | | |
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