Coelenterata is term encompassing two animal phyla, the Ctenophora (comb jellies) and the Cnidaria (coralanimals, true jellies, sea anemones, sea pens, and their allies). The name comes from the Greek "koilos" ("hollow bellied"), referring to the hollow body cavitycommon to these two phyla. They have very simple tissue organization, with only two layers of cells, external and internal and radial symmetry. Some of the examples are corals, sea anemone which are colonial and hydra, jelly fish which are solitary.Coelenterata have a closed circulatory system.
Why is Coelentrata my favorite?
It is favorite because jelly fishes are really pretty and they are amazing creatures corals are my favorite because they look pretty well some are pretty .and I like jelly fishes because it reminded me of spongebob because it has jellyfishes