Across
- 3. Disease causing microorganisms
- 5. Using bacteria in treatment of sewage
- 7. Cells which identify and destroy disease causing microbes
- 8. Harmful materials released by microorganisms
Down
- 1. Science which deals with the study of microorganisms
- 2. Method of preserving milk by heating followed by quick cooling
- 4. Chemicals that inhibit the growth of harmful microorganisms
- 6. Natural ability of an organism to destroy the infection