Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Circulatory System (Human Biology)Blood Cells
What is the primary function of white blood cells in the human body?
- A.Transport of oxygen
- B.Blood clotting
- C.Defence against diseaseCorrect answer
- D.Regulation of body temperature
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Practice these MCQs in the appQuick fact: The primary function of white blood cells is defence against disease by identifying and destroying pathogens like bacteria, viruses, and other foreign invaders.