What is the distinguishing characteristics of cinidera?

Answer 1

Cnidarians, a phylum that includes jellyfish, corals, and sea anemones, are characterized by their radial symmetry, soft bodies, and the presence of specialized cells called cnidocytes, which contain stinging structures known as nematocysts. They typically have two body forms: the polyp (sessile) and the medusa (free-swimming). Cnidarians also exhibit a simple body plan with a single opening surrounded by tentacles, serving both as a mouth and an anus, and they possess a basic nerve net for rudimentary nervous system functions. Their ability to capture prey using stinging cells is a key adaptation for survival in aquatic environments.