North Sea: North Sea, shallow, northeastern arm of the Atlantic Ocean, located between the British Isles and the mainland of northwestern Europe and covering an area of 220,000 square miles (570,000 square km).
Your immune system ignores the surface antigens on your own RBCs. However, your plasma contains antibodies, sometimes called agglutinins , that will attack the antigens on foreign RBCs. When these antibodies attack, the foreign cells agglutinate , or clump together; the process is called agglutination . The plasma of a Type A, Type B, or Type O individual always contains either antiâ A or antiâB antibodies, or both, even if the person has never been exposed to RBCs that carry foreign surface antigens. If you have Type A blood, your plasma contains antiâB antibodies, which will attack Type B surface antigens.
â¢ Antigen: a chemical that causes the immune system to produce specific antibodies. â¢ Antibody: a specific protein produced by the immune system on detection of an antigen. Induced Immunity: This is protection gained by the production of specific antibodies after the antigens on the pathogen have been detected. Antigen: a chemical that causes the immune system to produce specific antibodies. â¢ Antibody: a specific protein produced by the immune system on detection of an antigen. Induced Immunity: This is protection gained by the production of specific antibodies after the antigens on the pathogen have been detected.