What is a phylum that characterized by radial symmetry?

The phylum that is characterized by radial symmetry is Cnidaria. Radial symmetry is a type of body plan in which the body is arranged around a central axis with multiple identical or similar body parts arranged around the central axis. This can be seen in animals such as jellyfish, sea anemones, and corals, all of which belong to the phylum Cnidaria. Cnidarians are characterized by their gelatinous bodies, radial symmetry, and the presence of stinging cells called nematocysts, which they use to capture prey and defend themselves.