Which of the following is NOT true regarding Echinoderms? A. They are marine animals. B. They can perform ecdysis. C. The display pentaradial symmetry. D. They have an internal skeleton.

B) They can perform ecdysis.

Explanation:

Echinoderms are a phylum of marine invertebrates that include starfish, brittle stars, sea cucumbers, sea urchins, sand dollars, and crinoids. They are one of the most diverse groups of marine invertebrates and play important ecological roles from the near-shore environment to the deep seas.