KINGDOM ANIMALIA INVERTEBRATES CHAPTERS 32-38

ANIMAL CHARACTERISTICS for verts and inverts Motile during some stage of the organism life Multicellular Heterotrophic Mostly sexual reproduction

SPONGES Phylum Porifera

COMB JELLIES Phylum Ctenophora

FLATWORMS Phlyum Platyhelminthes

ROUNDWORMS Phylum Nematoda

ROTIFERS Phylum Rotifera

MOLLUSKS Phylum Mollusca

SEGMENTED WORMS Phylum Annelida

ARTHROPODS Phylum Arthropoda

Subphylum Crustacea

Subphylum Chelicerata

Subphylum Myriapoda

Subphylum Hexapoda Class Insecta

ECHINODERMS Phylum Echinodermata

INVERTEBRATE CHARACTERISTICS AND TRENDS asexual  sexual reproduction Assymmetry  radial  bilateral symmetry No tissues  2 layers  3 tissue layers no body cavity  pseudo body cavity  true body cavity protostomes  deuterostomes circulatory systems open: blood pumped into open cavity  closed: blood vessels form loop nerve net  simple nervous system  cephalization No segmentation  segmentation  segmentation with appendages