Echinoderms Are Unusual Invertebrates as They Have All of the Following

question 76

Multiple Choice

Echinoderms are unusual invertebrates as they have all of the following except:

• A) an endoskeleton.
• B) pentaradial symmetry.
• C) a water vascular system.
• D) pedicellariae present in some classes.
• E) small disc-shaped flat bodies.

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