Examlex
A great majority of the matter in our universe is not visible.
T Cells
A type of white blood cell that plays a critical role in the immune system, especially in the adaptive immune response, by identifying and killing infected cells or orchestrating the immune response.
Cell-mediated Immunity
A component of the immune system that involves the activation of certain immune cells to fight off pathogens, distinct from antibody-mediated immunity.
Antibodies
Proteins produced by the immune system in response to antigens, capable of specifically binding to and neutralizing them.
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