Echinodermata

Phylum Echinodermata: Characteristics, Classification, and Importance Phylum Echinodermata is one of the most fascinating and unique groups in the animal kingdom. These exclusively marine animals exhibit remarkable features, including a water vascular system, radial symmetry in adults, and a calcareous endoskeleton. Echinoderms include familiar sea creatures like starfish, sea urchins, sand dollars, brittle stars, and […]