Mr M 4th

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Across
  1. 2. close to the heart
  2. 4. cause scabs
  3. 7. kills bacteria
  4. 10. connects, exchanges
  5. 11. cooks the pathogen
  6. 12. moisten skin and hair
  7. 15. in the body to harm
  8. 17. carries oxygen
  9. 18. kills virus
  10. 19. skin, hair, nails
Down
  1. 1. fight infection
  2. 3. cools body
  3. 5. outer layer
  4. 6. weak strand of virus
  5. 8. inner layer
  6. 9. hides the pathogen
  7. 13. away from the heart
  8. 14. kill the pathogen
  9. 16. spot the pathogen