1. Pre AP Biology Circulatory and Immune Systems (8.11)

2. Gastrovascular Cavity

3. Open Circulatory (left) & Closed Circulatory (right)

4. Heart Structure Atrium – receives blood Ventricles – pump blood out

5. Water Vascular System

6. Blood Vessel Types

7. Where is the blood?

8. Blood Cell Types

10. Antibodies attaching to the antigen Antigen- binding sites Epitopes (antigenic determinants) Antibody A Antibody B Antibody C Antigen

12. WBC “eating” a pathogen

13. Innate Immunity

14. Plant defenses - Thorns

15. Plant defenses - cork