Final answer:
Eosinophils are white blood cells that play a unique role in the immune system by targeting parasitic worms, minimizing allergic reactions by releasing antihistamines, and participating in phagocytosis.
Step-by-step explanation:
Eosinophils are the types of white blood cells that kill parasitic worms, destroy antibody complexes, and inactivate some inflammatory chemicals of allergy. These specialized cells contain granules that release antihistamine molecules to counteract the effects of histamines produced by basophils and mast cells. Moreover, eosinophils carry toxic molecules in their granules specifically designed to target parasitic worms, which are a common threat when consuming raw or undercooked meats. In addition, eosinophils can also engulf pathogens through phagocytosis, especially when antibodies label the target, forming an antigen-antibody complex. This makes them particularly effective against pathogens marked by the immune system, contributing to their critical role in both innate and adaptive immune responses.