which of the following statements correctly describes the diffusion of oxygen during pulmonary gas exchange? view available hint(s)for part a which of the following statements correctly describes the diffusion of oxygen during pulmonary gas exchange? po2 is greater in the body tissues than the blood, so oxygen diffuses into the blood. po2 is greater in the blood than the alveolus, so oxygen diffuses into the alveolus. po2 is greater in the alveolus than the blood, so oxygen diffuses into the blood. po2 is greater in the blood than the body tissues, so oxygen diffuses into the body tissues.
