Phylum Echinodermata – General Biology

Phylum Echinodermata – General Biology echinodermata The Echinodermata are the most closely related invertebrates to humans The word echinoderm means “spiny skin” and it is an apt description for echinodermata Echinodermata , class: Ophiuroidea Like the asteroids, ophiuroids have five long arms, and they can grow up to 60cm

echinodermata Echinodermata The name Echinodermata is derived from the Greek word for spiny skin, although not all of the approximately 6000 species have

echinodermata Phylum echinodermata is the only animal phylum with 5-point symmetry and includes sea stars, sand dollars, urchins, crinoids, and sea cucumbers  Characteristics of Phylum Echinodermata Species · Spiny, bumpy skin · Five-sided radial symmetry · Presence of a water vascular system · Tube feet