Match the following terms and definitions.
a chemical that can destroy bacteria and other
microorganisms
pathogen
2. single-celled photosynthetic bacteria
cyanobacteria
3. whip-like cell extensions that give the cell motility
antibiotic
nitrogen fixation
rickettsia
process by which certain bacteria in the soil convert nitrogen
gas into ammonia and ammonium
5. a disease-causing organism; a germ
disease-causing microorganism intermediate between
6. bacteria and viruses, carried in the tissue of arthropods
(insects, etc.)
flagella