Why would natural selection not occur without genetic variations in species?

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asked Mar 20, 2018 177k views

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Shvalb · Answer 1 · 2018-03-26T01:00:06+0000

If you do not have variations to be selected by natural or sexual selection on their superior abilities to survive and reproduce successfully then nothing can be naturally selected against the immediate environment.

Why would natural selection not occur without genetic variations in species?

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