A. Multiple choice 1. D 2. A 3. C 4. B 5. B 6. B 7. B 8. C 9. C 10. B 11. D 12. D 13. B 14. A 15. C 16. B 17. B 18. C 19. C 20. D B. Structured question I .Atrium= D Septrum=B Ventricle= A Valve=C II. Are arteries (D) Is the pulmonary vein (C) (B). 1. Checking your pulse at your wrist. 2. Checking your pulse at your neck (C). I. Coronary artery disease II. - High blood pressure - High cholesterol - Smoking 2(A) I. - Won’t get infected - The antibodies are stronger II. Five doses of the DTaP shot and a Tdap booster shot are recommended for children and preteens by doctors as the best way to protect against diphtheria. III. Antibodies protect against bacteria that multiply outside cells mainly by facilitating uptake of the pathogen by phagocytic cells that are specialized to destroy ingested bacteria.