The body uses two types of digestion, mechanical and chemical, to break down food into small components. Mechanical digestion physically breaks down pieces of food, whereas chemical digestion breaks down food on the molecular level. Why must food molecules be chemically broken down into smaller component molecules by the body?
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What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.
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The body uses two types of digestion, mechanical and chemical, to break down food into small compone...
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