Question

Which term is the common name of the group whose members are characterized by endoskeleton and a unique water vascular
system?
A. tunicates
B. brachiopods
C. medusas
D. echinoderms​

Answer 1

Question

Which term is the common name of the group whose members are characterized by endoskeleton and a unique water vascular system?

Answer

echinoderm

An echinoderm is a member of the phylum Echinodermata which contains a number of marine organisms recognized by their pentamerous radial symmetry, calcareous endoskeleton, and a water vascular system which helps operate their small podia.