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Name______________________________ #_____ Date__________________________ Study Guide: Science Chapter 3 Vocabulary 1. artery 2. digestive system 3. heart 4. stomach 5. esophagus 6. kidneys 7. circulatory system 8. capillaries 9. excretory system 10. vein Heart Diagram: Correctly label a human heart with the right atrium, left atrium, right ventricle and left ventricle Multiple Choice 1. What system moves gases into and out of the body? 2. Enzymes in your saliva change starch to what? 3. What does the central vacuole of plant cell do? Short Answer 1. How does your pulse rate differ when you are resting and when you are exercising? Explain what causes this difference. 2. Would a marathon runner be wiser to eat steak or spaghetti before a long race? Explain your choice. 3. A giraffe eats tree leaves. A lion eats other animals. What could you conclude about the length and complexity of the digestive system of each animal? Explain your answer. 4. What role do muscles play in the digestion of food? 5. What role of the kidneys does a dialysis machine carry out? 6. What do the gills of a fish have in common with alveoli in a human heart?