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Health, 30.08.2019 06:00 sarahelisabeth444
Which of the following is the first step in respiration? a. oxygen passes into capillaries to the blood. b. oxygen is taken into the lungs. c. carbon dioxide passes into capillaries to the blood. d. carbon dioxide passes from the blood to the lungs.
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Which of the following is the first step in respiration? a. oxygen passes into capillaries to the b...
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