echinodermata

echinodermata   Dan 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 Characteristic Features of Phylum Echinodermata · These are exclusively marine animals · The larval forms show bilateral symmetry and adult forms show radial

pg united Echinodermata , class: Ophiuroidea Like the asteroids, ophiuroids have five long arms, and they can grow up to 60cm  Phylum echinodermata is the only animal phylum with 5-point symmetry and includes sea stars, sand dollars, urchins, crinoids, and sea cucumbers