Biology 2 5.0 / 5 based on 1 ratingTeacher recommended ? ScienceB2GCSEOCR Created by: millyagCreated on: 24-03-16 15:30 10723514869 Across 1. What happens if a heart doesn't receive enough oxygen? (5, 2, 1, 5, 6) 4. Veins carry blood......the heart. (4, 2) 6. What do receptors in white blood cells that attack specific microorganisms certain antigens recognise? (8) 8. Bacteria can quickly become a large ... inside your body. (6) 9. What are the tubes called that blood is circulated around the body in? (7) Down 2. Where are new drugs first tested? (2, 1, 10) 3. What does a diet in high salt increase? (5, 7) 5. Do white blood cells make antibodies or antigens? (10) 7. What does cholesterol do? (4, 5, 8) 10. Why are the walls of capillaries only 1 cell thick? (2, 9)
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