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20 hours ago · What is the definition of an antigen? anything the immune system recognizes as foreign to the body. a protein produced by plasma cells that attacks pathogens. a type of white blood cell. a part of the membrane attack complex of the complement system. a form of immune deficiency.
20 hours ago · directly examine the organism's appearance or behavior, which includes its metabolic abilities, environmental preferences and drug susceptibilities. The three main techniques for identifying microbes are ________. phenotypic, immunologic, and genotypic. Specimen collection ________. must utilize aseptic techniques.
