Question

Plz tell. I wanna help ​from u.

Answer 1

a) the property of being divisible into symmetrical halves on either side of a body..

b) the principal body cavity in most animals located between the intestinal canal and the body..

c) the condition of blastula in which there are two primary germ layers.. the ectoderm and endoderm..

a) they all come under a phylum called echindodermita..

b) they all come under Arthropoda..

hope its helpful dear..