are deuterostome coelomates whose nearest relations in the animal kingdom are the echinoderms, the only other deuterostomes. However, unlike echinoderms, chordates are characterized by a notochord, jointed appendages, and segmentation
are deuterostome coelomates whose nearest relations in the animal kingdom are the echinoderms, the only otherdeuterostomes. However, unlike echinoderms, chordates are characterized by a notochord, jointed appendages,and segmentation