1. Animals
Invertebrates

2. What are Animals? Cannot make their own food Have many cells
They have eukaryotic cells
Movement
Digest their food
Are we animals??

3. Animals are… Vertebrates Invertebrates Endoskeleton Exoskeleton
No Skeleton

4. Animals have… Symmetry Bilateral Radial Asymmetrical Most animals
Jellyfish and Starfish
Asymmetrical
Sponge

5. Invertebrates Majority of Animals (95%) No Skeleton Exoskeletons
Chitin
Molt
Eight major Phyla (groups)
academic.brooklyn.cuny.edu/.../page/chitin.html

6. Porifera [por IF er uh] Pore-bearing animals Sponges

7. Cnidaria [ni DER ee uh] Have special stinging cells Hollow bodies
Jellyfish, coral, sea anemones

8. Platyhelminthes [plat ee hel MIN theez]
Worms with flattened bodies
Planarians, tapeworms, flukes

9. Nematoda [nee muh TOH duh]
Worms with round, tube-like bodies
Pinworms, trichina worms, heartworm, hookworm
lovemyspca.com/PetsEnemies.html

10. Annelida [an nuh LEE duh]
Worms with segmented bodies, body divided into rings
Earthworms, leeches, sandworms

11. Mollusca [mo LUSK uh] Soft-body tissue Must have at least one:
Ribbon-like tongue with tiny teeth
Protective case
Layer of mantle
Clams, oysters, squid, snails, octopus

12. Arthropoda [AHR thruh pahd uh]
Animals with segmented bodies
Jointed legs
Exoskeleton
Insects, spiders, lobsters, crabs, scorpions, ticks

13. Echinodermata [Ee KINE o der MAT a]
Spiny Bodies
Leathery-skin
Live in the Oceans
Starfish, sand dollars, sea urchins

14. Simple vs. Complex Inverts
Porifera
Sponges
Most simple invertebrate
Cnidarians
Platyhelminthes
Simplest worms
Nematodes
Annelids
Mollusks
Arthropod
Echinoderm