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Do echinoderms and vertebrates both have endoskeletons? explain.
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Do echinoderms and vertebrates both have endoskeletons? explain.

User Feragusper
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Answer:

Echinoderms have a calcium carbonate endoskeleton, and vertebrates have a bony endoskeleton made of calcium phosphate. have bones mostly made of calcium phosphate.

Explanation:therefore, echinoderms do not have true endoskeletons.

User Nilobarp
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