Immune System

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Across
  1. 1. body cell capable of engulfing and absorbing bacteria
  2. 3. medicine used to treat bacterial infection
  3. 5. spore producing organism
  4. 6. infectious agent which needs a living host to survive
Down
  1. 1. Harmful substance which triggers an immune response
  2. 2. microorganism which causes infection, can have flagella for movement
  3. 4. once you recover from some illnesses, you may have _____