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Immunity System
The immunity system protects you from viruses and gets The viruses, fugi, bacteria, protozoan, and parasites are called pathogens The first line of defense against pathogens as the innate immunity, it includes the skin, body secretions, inflammation of body tissues, and phagocytes The skin secretion Tags : Immunity System Biology Channel Franklin High School Visto : 8383 video subido por soullessfool .
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