IMMUNOLOGY

Detailed explanation-1: -Lymphocytes. They create antibodies to fight against bacteria, viruses, and other potentially harmful invaders. Neutrophils.

Detailed explanation-2: -Types of leukocytes are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).

Detailed explanation-3: -Antibodies are produced by B cells (specialized white blood cells). When an antigen comes into contact with a B cell, it causes the B cell to divide and clone. These cloned B cells-or plasma cells-release millions of antibodies into your bloodstream and lymph system.