Different cells have different jobs. what job do whote blood cells have?

White blood cells, also calledleukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotentcells in the bone marrow known as hematopoietic stem cells.

Red blood cells are red blood cells, also called erythrocytes. These cells give the blood color. Their task is to transport oxygen and carbon dioxide through the hemoglobin molecule they carry