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Q:
A) A 50% oxygen saturation level of blood returning to the lungs might indicate an activity level higher than normal | B) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2 |
C) During conditions of acidosis, hemoglobin is able to carry oxygen more efficiently | D) Increased BPG levels in the red blood cells enhance oxygen-carrying capacity |
Answer: B) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2
Explanation:
Explanation: