Final answer:
White blood cells provide protection and regulate immune responses in the blood.
Step-by-step explanation:
White blood cells play a crucial role in the various functions of the blood, primarily in providing protection against harmful pathogens and foreign substances. They are responsible for the body's immune response and help in fighting infections. White blood cells can identify and engulf bacteria, viruses, and other pathogens, preventing them from causing harm. Additionally, they produce antibodies that target specific pathogens, aiding in their destruction.
Furthermore, white blood cells also participate in the process of inflammation, helping to remove damaged cells and initiate tissue repair. They are involved in the regulation of immune responses and the coordination of defense mechanisms in the body.
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