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Cyanobacteria are used in agricultural f...

Cyanobacteria are used in agricultural fields for crop improvement because they cause

A

`N_(2)` fixation

B

algal blooms

C

photosynthesis

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
A
Serveral cyanobacteria have the ability of nitrogen fixation. The filamentous form possess special large pale cells or heterocysts for this.
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NCERT FINGERTIPS-BIOLOGICAL CLASSIFICATION-Biological Classification
  1. Cyanobacteria are classfied under which of the following kingdoms?

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  2. Photosynthetic pigmetns of cyanobacteria (blue green algae) include

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  3. Cyanobacteria are used in agricultural fields for crop improvement bec...

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  4. Given figure is of filamentous. Blue green alga Nostoc. Identify the p...

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  5. Select the correct statement regarding heterocysts.

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  6. Given figure represents the ultrastructure of a typical cyanobacterial...

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  7. bacteria oxidise various inorganic substances such as nitrates, nitrit...

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  8. In five-kingdom classification system, the kingdom that includes, the ...

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  9. are important, decomposers that cause decay and decomposition of dead ...

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  10. Select the pair consiss of plant or animal bacterial diseases.

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  11. is the most common method of reproduction in bacteria.

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  12. Mycoplasmas are classified under which of the following kingdoms?

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  13. Which one of the following is an incorrect statement regarding mycopla...

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  14. Read the following statements and select the correct option Statemen...

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  15. Which of the following statements is incorrect?

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  16. Which of the following kingdoms has no well defined boundaries?

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  17. Which of the following organisms have been placed under kingdom Protis...

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  18. Members of kingdom Protista are primarily

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  19. The kingdom Protista forms a link with kingdom

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  20. Which of the following options incorrectly distinguishes the kingdoms ...

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