Echinodermata - ดาวน์โหลดหนังสือ 1-13 หน้า

Echinodermata - an overview echinodermata

Echinodermata , phylum of exclusively marine invertebrate animals The 6000 known species occur from shores to greatest depths

echinodermata Echinodermata is a phylum of about 7000 living species distributed among five classes: Echinoidea , Holothuroidea , The Echinodermata are the most closely related invertebrates to humans The word echinoderm means “spiny skin” and it is an apt description for Characteristics of Phylum Echinodermata Species · Spiny, bumpy skin · Five-sided radial symmetry · Presence of a water vascular system · Tube feet

เลขเดลินิวส์ 1 12 66 Preview The sea star Odontaster validus and sea urchin Sterechinus neumayeri are often found living in association Echinoderms Echinodermata