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How do the sand dollar’s physical qualities improve its life span?
By looking unappetizing to predators, the sand dollar can prevent being eaten.
By developing a hairy coat on its shell, the sand dollar can tolerate cold waters.
By keeping a thin skeleton, the sand dollar can camouflage itself in the sand.
By maintaining a delicate frame, the sand dollar can avoid being picked up by collectors.
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How do the sand dollar’s physical qualities improve its life span?
By looking unappetizing to preda...
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