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1 Lymphocytes, neutrophils, and monocytes. 2  These white blood cells fight against invading bacteria, viruses, or fungi to help destroy infection. 3  Each of these cells differs in appearance. 4  Eosinophils and basophils.5  These white blood cells respond to allergens that can invade our bodies. Lymphocytes, neutrophils, and monocytes. 2  These white blood cells fight against invading bacteria, viruses, or fungi to help destroy infection. 3  Each of these cells differs in appearance. 4  Eosinophils and basophils.
There are two basic types of leukocytes: 1  The phagocytes (pronounced: FAH-guh-sytes) are cells that chew up invading organisms. 2  The lymphocytes (pronounced: LIM-fuh-sytes) are cells that allow the body to remember and recognize previous invaders and help the body destroy them.