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  1. Life of red blood cells in the body is

    2. A.

     60 days
    B.

     120 days
    C.

     365 days
    D.

     465 days

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    Answer : Option B

    Explanation :

    Human red blood cells (RBC), after differentiating from erythroblasts in the bone marrow, are released into the blood and survive in the circulation for approximately 120 days. In humans and some other species, RBC normally survive in a nonrandom manner.

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