Question

which of the following statements regarding the different types of leukocytes is false? a monocytes release histamine. b eosinophils destroy parasites. c neutrophils are phagocytic. d lymphocytes play several roles in the immune response.

Explanation:

Mast cells and basophils, not monocytes, release histamine. Eosinophils target and destroy parasites. Neutrophils are phagocytic cells that engulf and destroy pathogens. Lymphocytes are crucial in the immune response with functions like antibody - production and cell - mediated immunity.

Answer:

A. Monocytes release histamine.