Which of the following is not a characteristic of the echinoderms?

Question

Quizplus · Accepted Answer

Echinoderms do not exhibit cephalization, which is the concentration of sensory and nervous structures in the anterior end of the body. Instead, they have a decentralized nervous system and typically have no defined head or brain. The other characteristics listed (bilateral symmetry in larvae, spiny skin, radial symmetry in adults, and complete digestive tract) are all features of echinoderms.

Which of the Following Is Not a Characteristic of the Echinoderms