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How do echinoderms eat?

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What Do Sea Stars Eat? Sea stars eat many things. A sea star's diet can include: barnacles, snails, sea urchins, clams, and mussels. A few species, such as the spiny star of the North Atlantic, eat other sea stars! Many sea stars eat mussels and clams in an interesting way. read more

A: Some echinoderms eat by everting their stomachs over their prey and digesting them externally; whereas others use modified parts of their skeleton as teeth, tentacles or tube feet to direct food to their mouth opening. Echinoderms are sea animals that ingest nutrition in a variety of ways. read more

Echinoderms are a diverse group with an equally diverse range of feeding habits. They graze on algae, filter plankton out of the current, mop up loose food particles from the bottom, slurp up sand and mud, pry apart mussels and oysters and digest them in the shell, there are even Brittle Stars that Trap and Eat Fish. read more

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