Answer: there are B and T type lymphocytes. B lymphocytes become cells that produce antibodies. Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response.
The hospital because everyday and night they are helping people and trying to find cure's to bad illnesses.The hospitals also help cure patients with lung cancer and breast cancer. (Hope that helped! sorry if it didnt)