Group A optimistic or A destructive: A antigens are current about the surfaces of blood cells. Anti-B antibodies are present within the plasma. The key operate of purple blood cells, or erythrocytes, is to hold oxygen with the lungs to the human body tissues. Every has its own position https://blood-castle-mu-online23221.blog2freedom.com/36351872/the-fact-about-blood-castle-mu-online-that-no-one-is-suggesting