What is the lifespan of RBCs in the blood?

What is the lifespan of RBCs in the blood?
  1. 6000-8000 mm⁻³
  2. 5-5.5 million mm⁻³
  3. 120 days
  4. 12-16 gms in 100 ml

Solution

RBCs have an average lifespan of 120 days, after which they are destroyed in the spleen.

Asked in: NCERT

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