Biology

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Across
  1. 3. used to stop bacteria
  2. 4. can travel by mosquito
  3. 6. a fake which is believed to be real
  4. 8. a substance that stimulates an immune response in the body
Down
  1. 1. a bacteria that causes food poisoning
  2. 2. an infectious agent that replicates in living cells
  3. 5. inactive pathogens
  4. 7. cells which grow uncontrollably