ocr: LYMPHOCYTES - TMPHOCTIES are white blood Thereare two types ofl lymphocyte: cells that play a key role in the Tly lymphocytes that attack invaders body's immune system. They directly; and B types that produce defend it against tiny invading chemicals, calleda antibodies, which organisms and help prevent cancer. latch onto and destroy invaders. Lymphocytes circulating in the bloodstream Red blood cells
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