1. Animals Multicellular Heterotrophic- Aerobic- require oxygen Most produce sexually most of the time Most are mobile most of the time Embryonic Development –Ectoderm: Outer Layer –Endoderm: Inner Layer –Mesoderm: Middle Layer

2. dorsal posterior ventral anterior Radial symmetry Bilateral symmetry

3. No Coelom vs. Coelom

4. epidermisgut cavity no body cavity; region between gut and body wall packed with organs Acoelomate organism (flatworm) No Coelom

5. epidermisgut cavity unlined body cavity (pseudocoel) around gut Pseudocoelomate organism (roundworm) Psuedocoel

6. epidermis gut cavity peritoneum lined body cavity (coelom); lining also holds internal organs in place Coelomate organism Coelom

8. Sponge

9. Sea anemoneCoral Figure 16.7(1) Page 267 Do not post to Internet

10. outer epithelium (epidermis) mesoglea (matrix) inner epithelium (gastrodermis) Medusa Polyp Cnidarian body plans

11. pharynx (protruded) genital poreoviducttestisovary branching gut branching units collect and expel excess water

12. Do not post to Internet Flukes mature and mate in human host Fertilized eggs exit in feces Ciliated larva hatches Larva burrow into snail; multiply asexually Fork-tailed larva leave snail, enter human host

13. Tape Worms

14. Portion of a tapeworm Do not post to Internet proglottidsscolex

15. Worm Body Structure

16. Figure 16.18b Page 273 Do not post to Internet

17. Polychaete Worm

18. Arthropods

19. Lobster

20. Artrhopod Crustaceans

22. egg Larva molts five times Female carries fertilized eggs under abdomen until they hatch Young crab molts many times before reaching maturity, and throughout lifetime thereafter

23. Do not post to Internet Mollusk

24. Mollusk Body Plan

25. Mollusks

26. Another Mollusk

27. Echinoderms

28. Sea Star

29. Sea urchins Sea cucumber Brittle star Do not post to Internet

30. Vertebrates

31. dorsal, tubular nerve cord notochord pharynx with gill slitstail extending past anus anus pore of atrial cavity hindgut gonadaorta midgut segmented muscles tentaclelike structures around mouth Lancelet

32. Early jawless fish (an agnathan) supporting structures gill slit jaw Early jawed fish (a placoderm)

33. Galápagos shark Manta ray Do not post to Internet

34. caudal fin dorsal fin pelvic fin (pair) pectoral fin (pair) anal fin

35. inside lobed fin; bony or cartilaginous structures (orange) undergoing modification limb bones of an early amphibian

36. Do not post to Internet

37. yolk sacembryo chorion amnion albumin (“white” of the egg)hardened shell allantois

38. Figure 16.32b Page 283 Do not post to Internet

39. Birds

40. Confuciusornis sanctus Do not post to Internet

41. Mammals

42. Koala Fig. 16.33d,e Page 284 Bat Do not post to Internet

43. Figure 16.33f Page 284 Do not post to Internet