Microevolution, or evolution at its smallest scale, occurs when

A) an individual's traits change in response to environmental factors.
B) a community of organisms changes due to the extinction of several dominant species.
C) a new species arises from an existing species.
D) a population's allele frequencies change over a span of generations.


Answer: D

Biology & Microbiology

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The proportion of individuals in a population expressing a trait when they have the appropriate

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Which of the following best describes why mapping is most accurate when genes are close together on a chromosome?

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Biology & Microbiology