Phylum Echinodermata Phylum Echinodermata are: Radial symmetry as adults, bilateral symmetry as larvae Hard endoskeleton composed of calcium carbonate plates Water vascular system for 🡪 locomotion, respiration, and feeding Tube feet for movement and feeding Regeneration ability Examples of Echinodermata Phylum Echinodermata is a group of marine animals that includes starfish, sea urchins, sand dollars, […]