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
process by which a species becomes better suited to its environment is known as a. | accommodation. | c. | adaptation. | b. | variation. | d. | selection. | | | | |
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3.
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The
hypothesis that evolution occurs at a slow, constant rate is known as a. | gradualism. | c. | natural
selection. | b. | slow motion. | d. | adaptation. | | | | |
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4.
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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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5.
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Since
natural resources are limited, all organisms a. | must migrate to new habitats. | c. | display vestigial structures. | b. | face a constant
struggle for existence. | d. | have a species
half-life. | | | | |
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