For 10 points, name this phylum of marine animals that includes corals and jellyfish.
This phylum includes the deadly species Chironex fleckeri (kye-ROW-nex fleh-CARE-ee). Obelia and air ferns are in its class Hydrazoa. Anthozoa, a mostly sessile class in this phylum, includes sea (*) anemones. Members of this phylum have two forms, the medusa and the polyp, and they are characterized by their namesake specialized cells for capturing prey, some of which are the stinging nematocysts (neh-MAH-toe-sists). For 10 points, name this phylum of marine animals that includes corals and jellyfish.
This phylum includes the deadly species Chironex fleckeri (kye-ROW-nex fleh-CARE-ee).
{Cnidaria} (nih-DARE-ee-uh)