Mention the characteristic features of Echinodermata:
Phylum 9: Echinodermata
Following are its basic features:
Spiny skin, Marine
Coelom present , bilateral symmetry, triploblastic
Endoskeleton of calcium carbonate.
Water vascular system for locomotion.
Bilateral symmetry before birth and radial symmetry after birth.
Example- Antedon, Sea cucumber, Star fish, Echinus.