Immunology

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Across
  1. 1. a substance used to stimulate the production of antibodies
  2. 4. large white blood cell that ingests foreign particles
  3. 6. ability to fight against infection
Down
  1. 2. triggers the immune system
  2. 3. regulatory proteins produced by the immune system cells
  3. 5. immunoglobulin that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses