Question

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Explain Natural Selection Quick Check
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Question
Natural selection causes changes in(1 point)
Responses

genotypes.
genotypes.

populations.
populations.

individuals.
individuals.

phenotypes.
phenotypes.
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Answer 1

Natural selection primarily causes changes in **populations** over time. While it acts on individuals by favoring those with advantageous traits, it is through the cumulative effect of these changes in individuals that the overall gene pool (genotypes) and the observable characteristics (phenotypes) of a population evolve. Therefore, the best response to the question is **populations**.

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