Question

If Cindy wanted to increase her endurance by taking supplements or drugs, she would be attempting to increase the __________.

A.
uptake of oxygen by red blood cells
B.
release of sugars in the blood stream
C.
uptake of carbohydrates by the body
D.
release of insulin in the body

Answer 1

A. The endurance of an athlete is dependent on his or her body's ability to uptake oxygen efficiently, a task carried out by the red blood cells.

Step-by-step explanation:

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Answer 2

A.
The endurance of an athlete is dependent on his or her body's ability to uptake oxygen efficiently, a task carried out by the red blood cells.