Question

Define by immunity of body and strong them any work

Answer 1

The immune system is the body's defense against infectious organisms and other invaders. Through a series of steps called the immune response, the immune system attacks organisms and substances that invade body systems and cause disease. the disease-fighting immune system.The Lymphatic system consists of bone marrow, spleen, thymus and lymph nodes. Bone marrow produces white blood cells, or leukocytes. The spleen is the largest lymphatic organ in the body contains white blood cells that fight infection or disease.