1. Arthropods A.Arthropod Characteristics B. Crustaceans C. Arachnids D. Centipedes/Millipedes E. Insects http://www.youtube.com/watch?v=go4MqVq9 HVM

2. Arthropods A.Arthropod Characteristics B. Crustaceans C. Arachnids D. Centipedes/Millipedes E. Insects Invertebrates Bilateral Symmetry Open Circulatory System 2 Opening Digestive System Sexual Reproduction

3. Arthropods A.Arthropod Characteristics 1. External Skeleton 2. Segmented Body 3. Jointed Appendages B. Crustaceans C. Arachnids D. Centipedes/Millipedes E. Insects

4. Arthropods A.Arthropod Characteristics 1. External Skeleton 2. Segmented Body 3. Jointed Appendages B. Crustaceans C. Arachnids D. Centipedes/Millipedes E. Insects Hard, waxy outer covering Made of protein and Chitin Protects body Gives support Prevents evaporation

5. Arthropods A.Arthropod Characteristics 1. External Skeleton 2. Segmented Body 3. Jointed Appendages B. Crustaceans C. Arachnids D. Centipedes/Millipedes E. Insects Molting – Process of shedding exoskeleton when it is out grown.

6. Arthropods A.Arthropod Characteristics 1. External Skeleton 2. Segmented Body 3. Jointed Appendages B. Crustaceans C. Arachnids D. Centipedes/Millipedes E. Insects Body divided into sections that move independently and serve different functions Allows for efficient movement

7. Arthropods A.Arthropod Characteristics 1. External Skeleton 2. Segmented Body 3. Jointed Appendages B. Crustaceans C. Arachnids D. Centipedes/Millipedes E. Insects Part of anatomy that projects from the body ex. Legs, antenna… Allows for greater flexibility Specialized for specific functions ex. Movement, sense

8. Arthropods A.Arthropod Characteristics B. Crustaceans 1. Physical Characteristics 2. Obtain Food/Oxygen C. Arachnids D. Centipedes/Millipedes E. Insects 2-3 Body sections 5 or more pairs of appendages At least 1 pair of appendages per segment

9. Arthropods A.Arthropod Characteristics B. Crustaceans 1. Physical Characteristics 2. Obtain Food/Oxygen C. Arachnids D. Centipedes/Millipedes E. Insects Front appendages called chelipeds grab food Scavangers Herbivores Carnivores

10. Arthropods A.Arthropod Characteristics B. Crustaceans C.Arachnids 1. Physical Characteristics 2. Obtain Food/Oxygen D. Centipedes/Millipedes E. Insects 22 Body Sections 4 pairs of legs No antenna

11. Arthropods A.Arthropod Characteristics B. Crustaceans C.Arachnids 1. Physical Characteristics 2. Obtain Food/Oxygen D. Centipedes/Millipedes E. Insects SpSpiders – Fangs to inject venom and suck in dissolving tissue Scorpians – stinger to inject venom Ticks - parasites

12. Arthropods A.Arthropod Characteristics B. Crustaceans C. Arachnids D.Centipedes/Millipedes 1. Physical Characteristics 2. Obtain Food/Oxygen E. Insects 2 Body Sections 2 or 4 legs per segment 1 pair of antenna

13. Arthropods A.Arthropod Characteristics B. Crustaceans C. Arachnids D.Centipedes/Millipedes 1. Physical Characteristics 2. Obtain Food/Oxygen E. Insects Centipedes – carnivores that inject venom into prey Millipedes - scavangers that mostly eat decaying leaves

14. Arthropods A.Arthropod Characteristics B. Crustaceans C. Arachnids D. Centipedes/Millipedes E.Insects 1. Physical Characteristics 2. Obtain Food/Oxygen 3 Body sections 6 Legs 1 Pair of antenna

15. Arthropods A.Arthropod Characteristics B. Crustaceans C. Arachnids D. Centipedes/Millipedes E.Insects 1. Physical Characteristics 2. Obtain Food/Oxygen Specially adapted mouth parts Carnivores Herbivores Scavangers