Kingdom ANIMALIA Subkingdom Eumetazoa Lophotrochozoa Basal animals True tissues Phylum Porifera Cnidaria Platyhelminthes Rotifera Ectoptocta Brachiopoda Mollusca Annelida
Symmetry no symmetry Radial Bilateral Bilateral Bilateral Bilateral Bilateral Bilateral
Body Cavity none none Acoelomate psuedocoelomate Coelomate Coelomate Reduced
Organization No tissues True tissues Organ-system Organ-system Organ-system Organ-system Organ-system Organ-system
Development Protostome Protostome Deutrostome Deutrostome Protostome Protostome
Segmentation unsegmented Lophophore unsegmented segmented Tiny animals Colonial animals hinged shell Characters 2 layers 2 layers Flat worms Crown of cilia Hard exoskeleton like clams soft-bodied segmented Choanocytes Cnidocytes solid, 3-layered, surround mouth with pores most stalked complete DigSys completeDigSys Spicules Polyp, Medusa mouth/anus Both marine & Lophophores 2 partsof shell may have shell most have Filter-feeder only mouth leads to fresh water emerge from pores are dorsal and head, foot and chetae many pores gastrovascular Digestive system Look like mosses ventral viseral mass hydroskeleton cavity, mouth stomach Bryozoa means rasping radula free living or anus moss animals only marine Examples Grantia Hydra parasitic Separate body Some reef builder Physalia central nervous cavity Jelly fish system Some have only Sea mat Snail Neries Sea Anemone Planaria females Membranipora Oyster Earthworm Corals Flukes Parthenogenesis membranacea Lamp shell Squid Leech Tape worm Bdelloid Octopus Ecdysozoa Deutrostomia
Nematoda Arthropoda Echinodermata Chordata
Bilateral Bilateral Bilateral larva Bilateral Adult radial
Pseudocoelomate Coelomate Coelomate Coelomate
Organ-system Organ-system Organ-system Organ-system
Protostome Protostome Deutrostome Deutrostome unsegmented segmented segmented
Round worms Exoskeleton Spiny-skinned Notochord complete DigSys completeDigSys Endoskeleton of dorsal nerve cord no cilia paired, jointed bony plates pharyngeal pouches live in soil or appendages water vascular have tail animal parasite most insects system, tubefeet most with backbone covered with have wings high regeneration gills or lungs cuticle Only marine Heart and vessels Molting Insect-butterfly Sea star Lamprey Crustacea-crab Sea urchin sharks Ascaris millipede sea cucumber salmon, tuna centipede brittle star frog, salamander spiders feather star lizard, turtle, scorpion pigeon, sea-gull kangaroo, bat, rat