Biology · Human Circulatory System
What is the primary function of white blood cells (leukocytes) in the human body?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To act as a defense mechanism against pathogens and infection✓
- 2To serve as a direct primary source of cellular energy
- 3To initiate the biochemical process of blood clotting
- 4To act as a carrier for oxygen transport from the lungs to tissues
Correct answer
To act as a defense mechanism against pathogens and infection
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