👉 The term "deuterostomata" refers to a group of eukaryotic animals that are characterized by having two ovoid, bilaterally symmetrical eyes (also known as the "two eyes") and two pairs of gills on their heads. This group includes several families including the chordates (chordates), which include insects, crustaceans, mollusks, and cephalopods, and the echinoderms, which are marine animals with a single
