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23 January, 17:10

As an environment changes, and some organisms have a higher fitness than others, natural selection acts directly on what.

A. Existing variations

B. Genetic material

Or

D. Individual organisms

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Answers (1)
  1. 23 January, 17:45
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    Natural selection acts directly on a population's gene pool, but individuals evolve.

    Natural selection acts directly on genotype, but individuals evolve.

    Natural selection acts directly on individuals, but genes evolve.

    Natural selection acts directly on phenotype, but populations evolve.
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