Explain how the respiratory and circulatory systems work together to transport nutrients, gases, and other molecules to and from the different parts of the body
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2. Which of the following is responsible for preventing food from entering the trachea?
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C. larynx
B. glottis
A. epiglottis
A. epiglottis
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2. Which of the following is responsible for preventing food from entering the trachea?
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3. Which of the following correctly describes the method of inhalation?
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4. What is the cavity at the rear of the mouth called?
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5. How many alveoli (approximately ) are found in the human lungs?
