WBCS.LIVE practice question

Life span of red blood cells is ______ days.

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 60
  2. 120
  3. 180
  4. 240

Correct answer and explanation

Correct answer: 120

Explanation: āœ… Correct Answer: B) 120 šŸ“š Explanation: Red Blood Cells (RBCs) circulate in the human body for an average of 120 days. After this period, they become worn out and are removed from circulation by the spleen and liver. The body continuously produces new RBCs in the bone marrow to replace the old ones.