1. Animal Kingdom

2. Characteristics
Obtain and digest food
Contain specialized cells

3. Body Plans Asymmetrical—sponge Radial Symmetry—hydra
Bilateral Symmetry—human
Anterior—head
Posterior—tail
Dorsal—top
Ventral--belly

4. Invertebrates Sponges
Filter feeders—take in H20 through pores—goes out of sponge through top opening.

5. Cnidarians Contain stinging cells called nematocysts
Ex. Jellyfish, hydra, sea anemone

6. Flatworms Acoelomate—no body cavity
Ex. Free-living planarians, parasitic flukes and tapeworms

7. Roundworms
Have two body openings.
Ex. Ascaris and hookworms

8. Roundworms

9. Mollusca
2 body openings, muscular foot, mantle (which secretes a shell in some).
Ex. Snails, slugs, clams, octopus, squid

10. Segmented Worms Have setae—bristles that help them move
Ex. Leeches (suck blood) and earthworms

11. Arthropods
Bilateral symmetry, coelomate (fluid-filled cavity), have exoskeletons, have jointed appendages.
Ex. arachnids, insects, myriapods, crustaceans

12. Echinoderms Water vascular system to move and feed
Ex. Sea stars, sea urchins, sand dollars