1. Kingdom Animalia

2. Characteristics Eukaryotic organisms Multicellular No cell walls
Heterotrophs (consumers)

3. Characteristics
Specialized tissues for impulses and movement (nervous system)
Movement relates to ability to find food
Most develop from Zygotes

4. Body Plans - Symmetry
Animals that are irregular in shape are asymmetrical
Animals that are regular in shape are symmetrical

5. Symmetry
An animal has radial symmetry if it can be divided along any plane, through a central axis, into even halves
An animal has bilateral symmetry if it can be divided down it's length into similar right and left halves

6. Bilateral Symmetry Those with Bilateral Symmetry have: Dorsal (top)
Ventral (bottom)
Anterior (front)
Posterior (back)

7. Invertebrates 8 main Phyla No backbones
95% of all animals belong to this group

8. Phylum Porifera
Examples:
Tube Sponge, Glass Sponge, Sea Sponge

9. Phylum Porifera Approx. 5 000 species Sessile (immobile) Asymmetrical
No mouth or digestive cavity
Marine or fresh water

10. Phylum Cnidaria
Examples:
Jellyfish, Hydra, Sea anemones, and corals

11. Phylum Cnidaria Approx. 10 000 species Sessile or motile
Medusoid (jellyfish) or polyp (inverted jellyfish) form in life cycle
Radial symmetry
Mostly marine, some fresh water

12. Phylum Platyhelminthes (flatworms)
Examples:
Planaria, Tapeworm, Tubellarians, Flukes

13. Phylum Platyhelminthes
Approx species
Free-living in marine or fresh water, or parasitic
Body flattened dorsoventrally
Mouth only

14. Phylum Nematoda (roundworms)
Examples:
Hookworm, pinworm, Trichinella

15. Phylum Nematoda Approx. 20 000+ species
Cylindrical, slender, tapered at either end
Free-living or parasitic

16. Phylum Annelida (segmented worms)
Examples:
Earthworms, leeches, polychaetes

17. Phylum Annelida Approx. 12 000+ species Segmented body
Terrestrial and aquatic
Mouth and anus

18. Phylum Mollusca
Examples:
Snails, clams, squids

19. Phylum Mollusca Approx. 100 000+ species Muscular foot
Shell present in many forms
All habitats

20. Phylum Arthropoda Examples:
Insects, crab, mites, ticks, spiders, centipedes

21. Phylum Arthropoda Approx. 1 000 000+ species
Segmented body, some segments may be fused
Jointed appendages
External skeleton

22. Phylum Echinodermata
Examples:
Starfish, Sea Cucumbers, Sea Urchins

23. Phylum Echinodermata Approx. 7 000 species
Adults have pentamerous (five-sided) radial symmetry
marine

24. Vertebrates Have backbones 1 main Phyla
Only 5% of animals belong to this group, including us

25. Phylum Chordata
Examples:
Fish, amphibians, reptiles, birds, mammals

26. Phylum Chordata Approx. 7 000 species
Notochord (flexible rod shaped body of embryo) at some time in life history
Bilateral symmetry