Multiple choice

RBCs live for about 120 days.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Red blood cells, or erythrocytes, have an average lifespan of about 120 days in the human body. After this period, they become worn out and are destroyed by macrophages in the spleen and liver. New red blood cells are continuously produced in the bone marrow to replace them.

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