What are the characteristics of cnidarians?
Cnidarians are the earliest multicellular animals to have tissue-level organization. Common features of cnidarians include radially symmetrical diploblasts with true tissues and nematocysts. Cnidarians reproduce both sexually and asexually. They are classified based on the presence of a specialized cell called the cnidocyte that releases the thin, harpoon-like structure called a nematocyst to attack prey. Features of cnidarians will be discussed in the additional Cnidarians concepts.