Q. Which of the following phyla has no freshwater forms?
A) Echinodermata
B) Mollusca
C) Chordata
D) Porifera
Explanation
Echinoderms are exclusively marine and largely bottom dwellers, enterocoelous coelomate, triploblastic animals.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.