Which of the Following Describe(s)echinoderms

question 5

Multiple Choice

Which of the following describe(s) echinoderms?

• A) They have an exoskeleton of hard calcareous plates.
• B) Tubefeet provide motility in most species.
• C) Digestion occurs completely outside of the organism.
• D) Hemolymph circulates in the water vascular system.
• E) They are found in both freshwater and saltwater environments.

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