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Echinoderms are a phylum with usually 5 fold symmetry, spines and calcium carbonate plates.

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Q: Echinoderms body description
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Does Echinoderms have a body cavity?

Yes it does


Do echinoderms have body openings?

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What body part arthropods have that echinoderms do not have?

legs.


What are the body covering of most echinoderms?

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