Organisms in this phylum are characterized by stinging cells known as nematocytes (nuh-MAT-oh-sites) and grow from a polyp to a medusa.
One class of this phylum is distinguished by the presence of a pharynx that opens into the gastrovascular (GAS-tro-VAS-kyoo-lurr) cavity and is known as the actinopharynx (ack-TIN-o-FAIR-inks). One member of this phylum, Chironex fleckeri (KY-ro-nex FLECK-er-eye), is in the class Cubozoa (CUBE-oh-ZO-uh). Its class Anthozoa (AN-tho-ZO-uh) contains corals. Organisms in this phylum are characterized by stinging cells known as nematocytes (nuh-MAT-oh-sites) and grow from a polyp to a medusa. For 10 points, what marine phylum includes sea anemone, hydra, and jellyfish?
One class of this phylum is distinguished by the presence of a pharynx that opens into the gastrovascular (GAS-tro-VAS-kyoo-lurr) cavity and is known as the actinopharynx (ack-TIN-o-FAIR-inks).
{Cnidaria} ({ni}-{DARE}-{ee}-{uh})