The immune system uses ______ to fight off bacteria and viruses.

Question

Quizplus · Accepted Answer

Leukocytes, also known as white blood cells, are a key component of the immune system and are responsible for recognizing and attacking foreign invaders like bacteria and viruses. Platelets are involved in clotting, not immunity. Antigens are molecules that the immune system recognizes as foreign, but they are not used to fight off bacteria and viruses themselves. Pathogens are foreign invaders that the immune system fights against, but they are not used by the immune system to fight off other pathogens.

The Immune System Uses ______ to Fight Off Bacteria and Viruses