Multiple choice

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

  1. Calcium carbonate structures

  2. Water driven tube system

  3. Acoelomic cavity

  4. Triploblastic
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Echinoderms possess coelom or body cavity.Echinoderms possess a unique water vascular system. This is a network of fluid-filled canals derived from the coelom (body cavity) that function in gas exchange, feeding, sensory reception and locomotion.

Keep practicing — related questions