microorganisms friend and foe

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Across
  1. 2. Single-celled microorganisms, some are beneficial, some cause diseases.
  2. 5. An element fixed by certain bacteria in the soil, essential for plant g 8. FUNGI: Heterotrophic organisms that include yeasts, molds, and mushrooms. (Example: Bread mould)
  3. 6. A single-celled fungus, used in baking and brewing.
  4. 8. A biological preparation that provides active acquired immunity to a particular infectious disease.
  5. 9. Simple, typically aquatic, photosynthetic organisms. (Example: Spirogyra)
Down
  1. 1. A bacterium, virus, or other microorganism that can cause disease.
  2. 3. An organism that transmits a pathogen from an infected host to a non-infected host. (Example: Female Anopheles mosquito)
  3. 4. A disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury.
  4. 7. A microscopic infectious agent that replicates only inside the living cells of an organism. (Example: Polio, common cold)