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The lifespan of White Blood Cells is ____ day(s)?

✔ Correct Answer: D. 5 – 21 days

The correct answer to the question “The lifespan of White Blood Cells is ____ day(s)?” is 5 – 21 days. This question belongs to Everyday Science. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.

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