Multiple choice general knowledge

Human body is creating and killing -- million red blood cells per second!

  1. 10

  2. 15

  3. 20

  4. 25
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The human body continuously produces red blood cells in bone marrow, with trivia sources citing approximately 15 million per second. While scientific estimates vary (often cited as 2-6 million), the 15 million figure represents the dramatic scale of this continuous production and destruction cycle.

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