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Lymphocyte Activity
The roles and behaviors of lymphocytes, a type of white blood cell, in the immune system, including recognizing and combating pathogens.
Microorganisms
Tiny living organisms that can only be seen with a microscope, including bacteria, viruses, and fungi, among others.
Memory Cells
A type of immune cell that remains in the body for long periods, ready to quickly respond to previously encountered antigens.
Antibodies
Proteins produced by the immune system that recognize and neutralize foreign objects like bacteria and viruses.
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