Q. Select the taxon mentioned that represents both marine and fresh water species :
A) Echinoderms
B) Ctenophora
C) Cephalochordata
D) Cnidaria
Explanation
[Solution] Cnidaria are mostly marine but include freshwater forms like Hydra; the other three are exclusively marine. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.