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2. Which of the following does not describe the circulatory system? b. The circulatory system carries away the waste products. a. The circulatory system is the life support structure that nourishes your cells with food and oxygen. d. The circulatory system can be modelled by a bunch of grapes. c. The circulatory system can be compared to a complex arrangement of highways, avenues and lanes. b. Your body doesn't need as much blood as it does when you exercise. from the outside where there is a higher air pressure 3. Why is your heart rate slow down when you are resting? a. Your body needs as much blood as it does when you exercise. c. Your body needs as much oxygen as it does when you exercise d. Your body doesn't need as much as carbon dioxide as it does when 4. Which of the following organ is not perfectly paired to its function? a. alveoli -- allow nutrient exchange filters air b. heart - pumps blood d. blood vessels - carry blood 5. Which of the following happens during the process of inhalation or breathing in? a. The diaphragm muscle relaxes. b. There is less space and greater air pressure inside the lungs. you exercise c. nose c. The ribs move upward. d. The diaphragm and ribs both go upward Write T if the statement is correct and F if not. Write your ar Trection. Dond the foll 1
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