The heme portion has its iron removed and transported using transferrin. The remainder of the heme becomes the greenish pigment biliverdin that is further modified into bilirubin. These two pigments are added to bile by the liver, and are responsible for the color of feces. The ABO Group Surfaces of blood and body cells possess antigens that are capable of stimulating an immune response in another person. For this reason never mis-match blood Mismatching blood types can lead to clumping of the blood in a transfusion reaction.
Death can follow within a week or two due to kidney failure.
Leukocytes white blood cells, or WBCs play a role in the body's immune response. They are less numerous than RBCs and most are short-lived. The objective of coagulation is to convert soluble fibrinogen into insoluble fibrin. As this occurs, blood cells and platelets get stuck in the net of fibrin, stopping blood loss. After a clot forms, it undergoes clot retraction within 30 minutes.