Question

1. which type of white blood cell is activated by antigens that are bound to antibodies?

eosinophils
monocytes
basophils
neutrophils

Explanation:

Eosinophils are white blood cells that are activated by antigens bound to antibodies. They play a role in the immune response against parasitic infections and in allergic reactions. Monocytes are involved in phagocytosis and antigen - presentation. Basophils release histamine and other mediators in allergic reactions. Neutrophils are the most abundant white blood cells and are mainly involved in the innate immune response against bacterial infections.

Answer:

eosinophils