1. The Animal Kingdom

2. 5 kingdoms 1. Monerans  Bacteria, prokaryotic 2. Protista  single celled, eukaryotic 3.Plantae 4.Fungi 5.Animalia

3. Characteristics of Animals  Eukaryotic  Multicellular  Reproduce  Specialized Cells  Heterotrophic (must obtain food)  Must Digest Food  Most animals move and have a fixed size in the adult form

4. ANIMAL PHYLA A B C

5. 1 2 34 56 78 10 11 9

6. Classification of Animals Symmetry: Assymetrical  Radial  Bilateral Body Cavity: Acoelomate  Pseudoceolomate  Coelomate Embryonic Openings Protostome  Deuterostome

7. Symmetry

8. Body Symmetry of Animals

9. Asymmetry cannot be divided into mirror images Ex- sponges Very simple organisms Believed this type of organism evolved 1st

10. Radial Symmetry: can be cut in half along many planes that allow for nearly identical halves Ex- Hydra: adaptation to be able to see prey coming at it from any direction

11. Bilateral Symmetry: a single plane divides body into two mirror images More complex organisms exhibit this kind of symmetry

12. Get ready to CLICK!!!

13. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

14. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

15. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

16. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

17. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

18. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

19. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

20. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

21. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

22. What type of symmetry is shown here? 1. Bilateral 2. Radial 3. Asymmetry

23. How else do we classify Animals?  DNA  Coelom or not  Physical Characteristics

24. Proto/Deuterostomes  Deuterostomes  Radial Cleavage  Blastopore becomes the _______  Indeterminate Cleavage: which means early on in development the fates of the cells are undetermined  Protostomes-  Spiral Cleavage  Blastopore becomes the _______  Determinate Cleavage- which means that each cell of the embryo has a fixed or determined fate.

25. Body cavity

26. Acoelomates FLATWORMS (Phylum _________) May be the 1 st organisms to evolve organs from mesoderm Solid, compact body Organs imbedded in the solid tissue of the body. first to have the three cell layers Ecto/endo/mesoderm Have a digestive tract (one way gut)

27. Pseudocoelomates Roundworms (Phylum _________) Have a body cavity It’s fluid-filled and partly lined with mesoderm Enables animal to move more quickly Muscles attach to the mesoderm and brace against the pseudocoelom

28. Coelomates Segmented worms (Phylum ______) Coelom provides space for development of organs/ organ systems This allows for membranes like the parietals and viscerals Have a TRUE body cavity COELOM= fluid-filled space COMPLETELY surrounded by mesoderm. Coelom cushions and protects internal organs and provides room for them to grow and move independently