Organisms of this phylum have two layers of epithelium that are only one cell thick.
Organisms of this phylum may exist as planulae in their larval stages, and they often use statocysts to sense balance. Chironex fleckeri is one of the most dangerous members of this diploblastic phylum, whose organisms can have spirocysts, ptychocysts, or (*) nematocysts. Organisms of this phylum have two layers of epithelium that are only one cell thick. Members of this phylum have bodies that are made of mesoglea, and its class Anthozoa is sessile. Organisms from this phylum typically have medusa and polyp stages in their life cycle. For ten points, identify this radially and bilaterally symmetrical phylum, named for its stinging cells, that includes organisms such as corals and jellyfish.
Organisms of this phylum may exist as planulae in their larval stages, and they often use statocysts to sense balance.
Cnidaria [accept Cnidarians] &lt;LP+RP&gt;