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22-06-2018
Biology

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Shells protect snails against predators. therefore, snails with thick shells are favored over those with thin shells through ____

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andriansp andriansp

01-07-2018

The answer is directional selection

There are three kinds of selections: selective selection, stabilizing selection and directional selection. The graph of directional selection would progress fast and steady. The reason why it keeps progressing is because one trait is extremely favored than the others.

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