60 likes | 412 Vues
The Phylum Cnidaria encompasses aquatic organisms, predominantly found in oceanic environments, exhibiting radial symmetry. Cnidarians take on two primary forms: the polyp, characterized by its vase-like shape, and the medusa, which has a bell-shaped appearance. Their structure comprises three key layers: the epidermis (outer layer), gastrodermis (inner layer), and mesoglea, a gelatinous substance located between these layers. This unique arrangement aids in their functioning and adaptation within marine ecosystems.
E N D