bacteria

5. viruses that affect plants
6. method of staining used to classify bacterial species into two large groups
7. a slender thread-like structure, especially a microscopic appendage that enables many protozoa, bacteria, etc, to swim
9. energy from inorganic compounds, carbon dioxide is the source of carbon
10. use light energy, carbon dioxide is the source of carbon
12. protein shell of a virus, enclosing its genetic material

1. infection caused by the presence of a virus in the body
2. bacteria with a rigid spiral structure
3. rod-shaped bacterium
4. a virus that parasitizes a bacterium by infecting it and reproducing inside it
8. small infectious agent that is unable to replicate outside a living cell
11. any spherical or roughly spherical bacterium