Group A favourable or simply a detrimental: A antigens are present over the surfaces of blood cells. Anti-B antibodies are current within the plasma. The platelets in blood help the clotting, or coagulation, of blood. When bleeding happens, the platelets group together to produce a clot. The clot varieties https://blood-castle-mu-online02221.blog5star.com/36804263/the-fact-about-blood-castle-mu-online-that-no-one-is-suggesting