1. KINGDOM ANIMALIA INVERTEBRATES
CHAPTERS 32-38

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

4. SPONGES Phylum Porifera

6. COMB JELLIES Phylum Ctenophora

7. FLATWORMS Phlyum Platyhelminthes

8. ROUNDWORMS Phylum Nematoda

9. ROTIFERS Phylum Rotifera

10. MOLLUSKS Phylum Mollusca

11. SEGMENTED WORMS Phylum Annelida

12. ARTHROPODS Phylum Arthropoda

13. Subphylum Crustacea

14. Subphylum Chelicerata

15. Subphylum Myriapoda

16. Subphylum Hexapoda Class Insecta

17. ECHINODERMS Phylum Echinodermata

18. 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