Unlike other decapods, hermit crabs are covered by a very thin and light exoskeleton that does not confer much protection against predators. How is this a selective advantage for the hermit crabs?

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The Answer of Unlike other decapods, hermit crabs are covered by a very thin and light exoskeleton that does not confer much protection against predators. How is this a selective advantage for the hermit crabs?

Unlike Other Decapods, Hermit Crabs Are Covered by a Very