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Everyday Science Medium FPSC Uploaded: 01 Sep 2026

The function of white blood cells in the human body is to:

  • A Transport oxygen
  • B Clot blood
  • C Digest food
  • D Fight infections
Correct Answer: Option D — Fight infections
Explanation:
White blood cells are part of the immune system and help the body fight off infections caused by bacteria, viruses, and other pathogens.
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