Across
- 4. A living thing that cannot be seen without a microscope
- 5. non-living, needs a host cell to reproduce; vaccines are used to prevent the spread
- 6. Any microorganism that causes disease
- 8. used to prevent the spread of viral diseases; made up of dead or weakened version of a virus
- 9. A disease that can be passed from one organism to another
Down
- 1. the study of microscopic organisms
- 2. A condition that prevents the body from functioning normally
- 3. used to prevent the growth of bacteria
- 7. single celled; prokaryotic; can be treated with antibiotics