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Name one 'biological nitrogen- fixer'....

Name one 'biological nitrogen- fixer'.

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**Step-by-Step Solution:** 1. **Understanding Biological Nitrogen Fixation**: Biological nitrogen fixation is a process where certain microorganisms convert atmospheric nitrogen (N2) into a form that plants can use, such as ammonia (NH3). This is crucial for enriching soil fertility. 2. **Identifying Nitrogen-Fixing Organisms**: The primary organisms responsible for biological nitrogen fixation are certain types of bacteria. These bacteria are often found in symbiotic relationships with plants, particularly legumes. 3. **Recognizing the Key Bacteria**: Among the nitrogen-fixing bacteria, one of the most well-known is **Rhizobium**. This bacterium is specifically associated with the roots of leguminous plants. ...
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Biological Nitrogen Fixation

LAKHMIR SINGH & MANJIT KAUR-MICRO - ORGANISMS : FRIEND AND FOE.-EXERCISE
  1. Name the scientist who discovered 'penicillin'.

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  2. State an important function performed by blue - green algae.

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  3. Name one 'biological nitrogen- fixer'.

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  4. Name two common insects which act as carries of disease - causing micr...

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  5. Name any two diseases spread by housefly.

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  6. Name the insect which is the carrier of parasite of malaria.

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  7. Name the insect which carries dengue virus.

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  8. Which of the two spreads dengue : mosquito or housefly?

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  9. Name two diseases spread by mosquitoes.

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  10. Name the microbe which causes malaria disease.

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  11. Name one disease which spreads by breathing in air containing micro- o...

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  12. Name one disease which spreads through insect bites.

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  13. Name one disease which spreads through infected food or water.

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  14. Name the causative micro - organisms of the following animal diseases:...

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  15. Name the causative micro - organisms of the following animal diseases:...

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  16. Name two food materials which are preserved by sun - drying method in ...

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  17. Name two food materials which are preserved by using common salt.

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  18. Name two food materials which can be preserved by using sugar.

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  19. Name two food materials which are usually preserved by deep freezing.

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  20. Name some of the preservatives which are used in the preservation of f...

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