Answer:
To fight against foreign antigens
Step-by-step explanation:
Lymphocytes are white blood cells that carry out immune defense. Lymphocytes recognise antigen, produce antibodies and weaken cells that could cause harm to the body. There are two types of lymphocytes, they include:
- B lymphocytes ( B cells)
- T lymphocytes (T cells)
They are both produced by stem cells in the bone marrow. Lymphocytes are able to bind with foreign substances(antigen) with the aid of receptor molecules on their surfaces thereby removing them from the body.