What is econiderms?

Answer 1

Echinoderms are a diverse group of marine animals characterized by their radial symmetry, a calcareous endoskeleton, and a unique water vascular system used for movement and feeding. This phylum includes organisms such as starfish, sea urchins, and sea cucumbers. Echinoderms exhibit remarkable regenerative abilities and play important roles in their ecosystems, often as predators or prey. They are primarily found on the ocean floor, where they contribute to the benthic community.