Which of the following indicates the direction of diffusion of gases at the alveoli of the lungs? 1. O2 out of blood, Co2 into blood 2. O2 into blood, Co2 out of the blood 3. O2 out of blood, Co2 out ...
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Which of the following indicates the direction of diffusion of gases at the alveoli of the lungs? 1. O2 out of blood, Co2 into blood 2. O2 into blood, Co2 out of the blood 3. O2 out of blood, Co2 out ...