Q. ‘Water-vascular’ system is found in
A) Sea-anemone
B) Sea-pen
C) Sea-cucumber
D) Sea-horse
Explanation
Echinoderms have water-vascular system (ambulacral system) with tube-feet for locomotion, feeding and respiration, e.g., Cucumaria (sea cucumber).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.