Name this phylum, for 10 points, which exhibits radial symmetry, possesses specialized stinging cells, and includes sea anemones and jellyfish.
Acellular mesoglea are gelatin-like layers that separate the gastrodermis that line the gut in this phylum. This phylum may feature small ciliated swimming larvae called planula that are developed from the zygote in a class including members such as Oculina patagonica, whose bleaching is caused by Vibrio bacteria. That is the class Anthozoa. Another class has two body shapes, a polyp one that reproduces asexually and a medusa one that reproduces sexually. Name this phylum, for 10 points, which exhibits radial symmetry, possesses specialized stinging cells, and includes sea anemones and jellyfish.
Acellular mesoglea are gelatin-like layers that separate the gastrodermis that line the gut in this phylum.
{Cnidarians}