Across
- 1. Tobacco mosaic plant disease caused by
- 4. Disease – causing microbe
- 5. Micro-organisms produce __________ in the food items they grow
- 6. This is a substance present in the blood that helps to provide immunity
- 8. Dry fruits and vegetables are preserved by this method
Down
- 1. Substance used to produce immunity in living body
- 2. Healthy bacteria
- 3. Air-borne disease caused by bacteria
- 7. Short form of polio vaccine
- 9. Spirogyra is an example of