Mature red blood cells expel their nuclei so that they have more surface area to transport oxygen and
carbon dioxide. What does this demonstrate?
O A. They cannot live very long.
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B. They must die within 24 hours.
OC. They are beginning to show signs of cancer.
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D. They are unable to metabolize or produce ATP.

The fact that mature red blood cells expel their nuclei, to expand their surface area and transport oxygen, can demonstrate that they cannot live very long.

Explanation:

The absence of a nucleus in mature red blood cells (erythrocytes) means that it has no genetic material and is unable to synthesize proteins to repair itself. This means a relatively short half-life for these cells.

A mature red blood cell circulates in the blood and performs its function for about 90 to 120 days, after which it is eliminated.

Regarding the other options:

B. Red blood cells can live more than 24 hours.

C. The absence of a nucleus in erythrocytes does not indicate any relationship with cancer.

D. Although they do not have mitochondria, erythrocytes can obtain ATP by glucose glycolysis and lactic acid fermentation. Even so, it is not related to the lack of nucleus