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