Are Echinoderms Fish?
Are Echinoderms Fish? water vascular system What are echinoderms? echinoderm, any of a variety of invertebrate marine animals belonging to the phylum Echinodermata, characterized by a hard, spiny covering or skin. What is a starfish classified as? Classification: Starfish are also referred to as sea stars because of their star-shaped appearance. They are a part