skylr1 skylr1
  • 09-12-2016
  • Health
contestada

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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erinlamas erinlamas
  • 09-12-2016
B. Oxygen in shaken into the lungs
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haleysuttles13 haleysuttles13
  • 17-01-2019

The answer to this question is B

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