What is the Primary Function of Leukocytes

Question

What is the primary function of leukocytes?
A) protection against invading microorganisms
B) transport of nutrients
C) body temperature regulation
D) clot formation

Accepted Answer

Leukocytes, or white blood cells, are primarily responsible for protecting the body against invading microorganisms, such as bacteria, viruses, and fungi, by identifying and destroying these pathogens.