Q9) The average life span of blood platelets is _____ days. 1. 3 – 4 2. 1 – 3 3. 11 – 15 4. 5 – 10
Q9) The average life span of blood platelets is _____ days. 1. 3 – 4 2. 1 – 3 3. 11 – 15 4. 5 – 10

Correct option- 4

Explanation: The average life span of blood platelets is 5 – 10 days. Bone marrow residing megakaryocytes produce approximately 100 billion platelets per day.