what type of specimen is this?
It is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments
Cnidaria
Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter.
what are the 5 main features of cnidarians Cells bound by inter-cell connections and carpet-like basement membranes; muscles; nervous systems; and some have sensory organs.
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Cnidaria [SEP] Introduction
Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick. They mostly have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. Both forms have a single orifice and body cavity that are used for digestion and respiration.