1. Metazoa: Animals
Kingdom: Animalia

2. Animalia

3. Animalia

4. Animalia Eukaryotic Multicellular Heterotrophic Motile No cell walls
Gametic Life Cycle (diploid dominant)
Unique development (Embryology)

5. Symmetry
Radial Symmetry
Asymetry
Bilateral Symmetry

6. Gut
Incomplete – sac body plan
Complete – tube-within-a-tube body plan

7. Primary Tissues Endoderm – inner surface tissue lining the gut.
Mesoderm – internal tissue sandwiched between exterior & interior.
Ectoderm – outer surface tissue.

8. Body Cavities
Acoelomate, Pseudocoelomate, Coelomate

9. Protostomes vs Deuterostomes

10. Animal Phylogeny (morphological)

11. Animal Phylogeny (molecular)

12. Animal Phyla Protostomes: Porifera Cnidaria Platyhelminthes Nematoda
Mollusca
Annelida
Arthropoda
Deuterostomes:
Echinodermata
Chordata

13. Porifera
Sponges

14. Cnidaria
Jellyfish,
Hydras

15. Platyhelminthes
Flatworms

16. Nematoda
Smooth Roundworms

17. Mollusca
Mollusks – snails, slugs, clams, octopi

18. Annelida
Segmented Roundworms

19. Arthropoda
Insects, millipedes, centipedes, spiders, ticks, crustaceans, crabs, lobsters, shrimp, scorpions.

20. Echinodermata
Starfish, Sea Urchins

21. Chordata
Eels, fish, amphibians, reptiles, birds, mammals…humans