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

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asked Oct 9, 2019 207k views

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Kevin Qiu · Answer 1 · 2019-10-13T09:32:16+0000

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.

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

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