Animals with radial symmetry get information

In the animal kingdom, there are two broad phyla that exhibit radial symmetry: One of these is cnidarians, which include jellyfish, anemones, and corals.Jellyfish exhibit radial symmetry in four points around its center. Also, echinoderms, such as sea stars,urchins, and sea cucumbers.

Cells of an organism tell each other when predators are near.