Key words

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Across
  1. 2. An organism that can be seen only through a microscope
  2. 5. A substance used to stimulate the production of antibodies and provide immunity against
  3. 6. of the Four humours The belief that the substances that make up the human body are: black bile, yellow bile,
  4. 8. An unpleasant or unhealthy smell or vapour
  5. 11. The Romans built these to transport fresh water to highly populated areas
  6. 12. and phlegm.
  7. 13. A substance that stops or slows down the growth of microorganisms
Down
  1. 1. Heating liquid or food to kill microorganisms
  2. 3. To give a weak form of a disease to a person or animal, usually by injection, as a protection against that disease
  3. 4. A heart monitor invented by Willem Einthoven in the early 1900’s
  4. 7. Protected against, not affected by a disease
  5. 9. Medicines that treat infections by killing bacteria
  6. 10. scanner A powerful Xray that provides a cross-section of the human body invented in 1972