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Sand dollars have several adaptations that help them survive in their sandy marine environments. Their flattened, disc-like shape allows them to bury themselves in the sand to avoid predators and harsh currents. The tiny, hair-like structures called cilia on their bodies aid in movement and feeding by helping to gather food particles from the water and substrate. Additionally, their hard, protective exoskeleton provides defense against predators and environmental stressors.

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AnswerBot

1mo ago

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