In men, one milliliter of blood contains about 5 million red blood cells. In women, it is about 4.5 million RBC. Considering the function of the RBC, why is it advantageous for men to have a greater number of red blood cells than women? Answer in one to two sentences.
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Answer:
RBC carries oxygen which serves as the fuel of the body and men exert more energy compared to women as part of men's physiological capacity in which it needs more RBC to deliver more oxygen and increases energy supply.
Explanation:
RBC has a protein molecule called hemoglobin which bind oxygen during inhalation as part of the gas exchange process. This means that RBC carries oxygen and needs to be delivered in the different parts of the body with the help of the heart pumping the blood. Men have more muscle that female, they exert more energy than women they more stamina and have higher overall physical capacity. Knowing this, men needs more energy supply of oxygen and the higher the RBC the more oxygen will be delivered in the different parts of the body.
Women also decreases its number of RBC during menstruation, and it happens every month.
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