THE ANIMAL KINGDOM BASIC CHARACTERISTICS OF ANIMALS: N INE ANIMAL PHYLA INVERTEBRATES: VERTEBRATES (CORDATES): (1 phylum) MULTICELLULAR ORGANISMS CAPABILITY OF LOCOMOTION MUST INJEST FOOD (8 PHYLA) ALL LACK INTERNAL SKELETON, SOME HAVE EXOSKELTON OR SHELL INTERNAL SKELTON MADE OF BONE/ CARTILAGE

1. PORIFERA: SIMPLEST ANIMALS NO TISSUE LAYERS EXAMPLES: SPONGES

2. CNIDARIA HOLLOW BODY HAVE STINGING CELLS TWO BODY FORMS MEDUSA & POLYP EXAMPLES: CORAL, JELLYFISH, SEA ANEMONE

3. PLATYHELMINTHES: EXAMPLES: PLANARIA, FLUKE, TAPEWORM UNSEGMENTED WORMS FLAT WORMS

4. NEMATODA UNSEGMENTED WORMS ROUND WORMS EXAMPLES: HOOKWORMS, HEARTWORMS

5. ANNELIDA MOST ADVANCED WORMS SEGMENTED WORMS EXAMPLES: LEECH, EARTHWORMS

6. ARTHROPODA SEGMENTED ANIMALS EXOSKELETONS MADE OF CHITIN CLASS CRUSTACEAN - MARINE ORGANISMS EXAMPLES: SHRIMP, LOBSTER, CRAB, BARNACLE

7. MOLLUSCA SOME HAVE SHELL UNSEGMENTED, SOFT BODIES EXAMPLES: SNAIL, SCALLOP

8. ECHINODERMATA HAVE A DERMAL SKELETON WITH SPINES & PLATES ONLY LIVE IN MARINE ENVIRONMENT EXAMPLES: SEA URCHIN, SEASTAR, BRITTLE STAR

9. CHORDATA HAVE INTERNAL SKELETON BACKBONE TO PROTECT SPINAL CORD EXAMPLES: FISH, REPTILES, BIRDS, AMPHIBIANS, MAMMALS