Invertebrates

Recall cards on the major invertebrate phyla: the tissue-less sponges (Porifera) with their spongocoel, choanocytes, and spicules; the diploblastic Cnidaria with their cnidocytes, polyp and medusa forms, and coral reefs; the lophotrochozoan flatworms, rotifers, and nemerteans; the mollusks and the segmented annelids; the molting ecdysozoan nematodes and tardigrades; the arthropods with their exoskeleton, tagmata, and subphyla from chelicerates to insects; and the invertebrate deuterostomes, the echinoderms with their water vascular system and the invertebrate chordates.