Q. Skeletal system in echinoderms is
A) Formed by the distension of the water vascular system
B) Calcareous exoskeleton
C) Siliceous endoskeleton
D) None of the above
Explanation
The water vascular system in Echinoderms, helps in locomotion together with the tube feet. Echinoderms have an endoskeleton made of calcareous plates and spines
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.