Across
- 2. a very small organism.
- 5. prokaryotic single-celled organisms.
- 6. an organism that has the capacity to cause disease.
- 7. a cell with a disease that can be passed down.
- 8. a change that disturbs the normal functioning of the body's systems.
- 9. organism that harms the host by taking nutrients.
Down
- 1. used to control and prevent the spread of some bacterial and viral diseases.
- 3. drugs that are used to inhibit the growth of bacteria.
- 4. non-living particles composed of nucleic acids and a protein coat.
- 7. the smallest unit of life.