Science vocab

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Across
  1. 2. non living makes you sick
  2. 3. cell walls no organelles
  3. 4. virus shell
  4. 5. cycle Live virus
  5. 7. worldwide spread of disease
  6. 9. cycle hidden virus
Down
  1. 1. cause disease
  2. 2. Injected antibodies
  3. 6. widespread disease certain time
  4. 8. system host defense