Echinodermata and deuterostome invertebrates

Phylum Echinodermata - Advanced - echinodermata

Phylum echinodermata is the only animal phylum with 5-point symmetry and includes sea stars, sand dollars, urchins, crinoids, and sea cucumbers

echinodermata Etymology edit From Ancient Greek ἐχῖνος + δέρμα Proper noun edit Echinodermata  ECHINODERMATA ❖ Echinos = หนาม Derma = ผิวหนัง ❖ Radial symmetry ในระยะตัวเต็มวัย ❖ Bil t l t ใ ั ❖ Bilateral symmetry ในระยะตัวอ อน  Phylum Echinodermata spiny-skinned animals all marine adults have radial symmetry larvae have bilateral symmetry Class Asteroidea

โอเพ่น365 Echinodermata and deuterostome invertebrates The Natural History Museum holds a significant collection of deuterostome invertebrates, of which about 10%