1. Arthropods

2. What structures make an Arthropod an Arthropod?
Jointed Legs
Hard Exoskeleton

3. Interesting Facts
Arthropods have an exoskeleton that does not grow along with the animal so it must be shed from time to time leaving the animal vulnerable to attack.
They live on land and in water.
There are more species of arthropods than any other animal species combined.
An estimated 80% of all animals are Arthropods.

4. Interesting Facts (Cont.)
The success of arthropods is related to their hard exoskeleton, segmentation, and jointed appendages. The appendages are used for feeding, sensory reception, defense, and locomotion.

5. Classes (main groups) of Phylum Arthropoda
Crustaceans (Lobsters, Crayfish, Shrimp and more)
Arachnids (Spiders with 8 legs and 3 body sections)
Centipedes
Millipedes
Trilobites (extinct)
Insecta (Insects with 6 Legs, 3 body sections, and an exoskeleton)

6. Crustaceans
Have gills and live in a watery place

7. Arachnids
They have eight legs, two body sections and an exoskeleton (outside skeleton).
Brown Recluse
Black Widow
Wolf Spider
Hobo Spider

8. Centipedes
Carnivores, Legs out to the side of body

9. Millipedes
Many little legs under the body

10. Trilobites (extinct)

11. Crayfish Classification ?
Kingdom?
Phylum?
Class?
Order?