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MULTIPLE CHOICE QUESTION Air entering the lungs contains more __ and less carbon dioxide than the blood that flows in the pulmonary capillaries. oxyg en carbon dioxide carbon monoxide
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A. Oxygen
Açıklamak
## Step 1<br />The question is asking about the composition entering the lungs compared to the blood that flows in the pulmonary capillaries. The air entering the lungs is rich in oxygen and poor in carbon dioxide. This is because the primary function of the lungs is to oxygenate the blood.<br />## Step 2<br />The blood that flows in the pulmonary capillaries is rich in carbon dioxide, which is a waste product of cellular respiration. This carbon dioxide is then expelled from the body during exhalation.<br />## Step 3<br />Therefore, the air entering the lungs contains more oxygen and less carbon dioxide than the blood that flows in the pulmonary capillaries.
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