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.
How do they destroy pathogens? Antibodies bind to foreign molecular structures which are broadly called antigens. This could be, for example, a surface protein on a virus or bacterium, a bacterial or animal toxin or even transplanted human tissue, for instance if someone receives blood of the wrong type.he macrophages etc. actually recognize the antibody and that tells them it is a foreign particle. 3: Finally, bound antibodies activate a cascade called complement. A cascade is a set of proteins that activate each other in a chain reaction causing downstream effects.