A) Porifera
B) Cnidaria
C) Ctenophora
D) Echinodennata
Correct Answer: D
Solution :
Water vascular or ambulacral system is a unique system of echinoderms, which helps mainly in locomotion. In fact, it is a modified part of coelom consisting of a system of canals containing sea water and amoeboid corpuscles.You need to login to perform this action.
You will be redirected in
3 sec