Across
- 3. the study of tiny living organisms.
- 4. Change in genetic sequence.
- 5. a common antibiotic used to treat bacterial infections.
- 6. This field studies the responses of the body against antigens.
- 8. No matter how effective they are, they are ‘powerless’ against viruses.
Down
- 1. the virus that destroyed your social life in 2020.
- 2. These organisms cannot be seen by the naked eye and just because you don't see them doesn't mean they do not exist.
- 5. Microbes that cause diseases .
- 7. Common microflora of the skin but these are the resistant ones.