Note on a candle: CAUTION: FLAMMABLE stare
random biology text i decided to type out:
B Cells and Humoral Immunity
Antibody proteins are embedded on the surface of B cells as specific receptors for antigens. In total, researchers estimate there are approximately 100 million different B cell surfaces. That's enough to recognize almost any kind of antigen you are likely to ever encounter.
B cells defend primarily against bacteria ad viruses that are found outside of cells in body fluids. When fighting a pathogen,a Be cell containing the matching antigen receptor binds to the antigens of the pathogen. This activates the B cell. Activation means that the B cell grows and clones itself, forming millions of identical cells. Each of those cells s capable of developing into a plasma cell, which produces and secretes antibodies specific to the antigen that activated the original b cell. The plasma cells are carried in th lymph and blood to sites of infection throughout the body. Since antibodies travel in the blood and other body fluids, immunity that originates from b cells is called humoral immunity.
HA hA. ok i wasted 2 minutes typing this out. i love biology
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criseldt Community Member 
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