Biology

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Across
  1. 3. dicovered penicillin
  2. 9. producesdby a type of white blood cell to defend the body
  3. 10. poison
  4. 11. disease causing micro-organisms
  5. 14. protitst diesease
  6. 15. type of immunity done in large groups of people
  7. 17. name for a disease that cannot be transmitted form person to person
  8. 18. a type of painkiller
  9. 20. releive symptons of disease
Down
  1. 1. contains a weakened/dead pathogen to become immune
  2. 2. a doctor in the 1950s
  3. 4. a single-celled eukaryotic organism that don't belong to a 'kingdom'
  4. 5. detect which virus is entering the body
  5. 6. originates from willow bark
  6. 7. eukaryotic organism
  7. 8. a type of bacterial disease
  8. 12. name for infectious disease
  9. 13. when the pathogens are engulfed by the white blood cells
  10. 16. measles,mumps,rubella vacine
  11. 19. proteins on the surface of cells