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Which of the following is nitrogen fixin...

Which of the following is nitrogen fixing algae

A

Nostoc, Anabaena, Oscillatoria

B

Azolla, Anabaenra, Azotobactes

C

Oscillatoria, Anabaena, Azolla

D

Azolla, Nostoc, Oscillatoria

Text Solution

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The correct Answer is:
A
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MOTION-DIVERSITY IN THE LIVING WORLD-Exercise - 4 AIIMS | Assertion & Reason Questions
  1. Match column I with column II and choose the correct option.

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  2. Consider the following statements regarding the major pigments and sto...

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  3. Which of the following is nitrogen fixing algae

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  4. Assertion: Binomial names are latinised or derived from latin irrespec...

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  5. Assertion: Modern taxonomic studies provide more accurate grouping of...

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  6. Assertion: Family has a group of related orders and classes. Reason:...

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  7. Assertion: Genera are aggregate of closely related species. Reason: ...

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  8. Assertion: In higher category there is great difficulty of determining...

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  9. Assertion: Herbaris can not serve as quick refernce system in taxonomi...

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  10. Assertion: Same type of key can be used for every taxonomic category s...

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  11. Assertion: Biological concept of species is based on reproductive isol...

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  12. Assertion: Cryptogams do not reproduce sexually. Reason: Flowers are...

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  13. Assertion: Classification of Linnaecus is artificial. Reason: It is ...

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  14. Assertion: Classification systems have undergoes several changes over ...

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  15. Assertion: Although Bacterial structure is very simple yet they are ve...

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  16. Assertion: Archaebacteria differ from other bacteria only in structure...

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  17. Assertion: Heterocytes are specified cells of blue green algae for Nit...

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  18. Assertion: Chemosynthetic autotrophic bacteria play a great rolie in r...

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  19. Assertion: Members of protisis are eukaryotes. Reason: Protistial ce...

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  20. Assertion: The cellwall of diatoms is indestructible. Reason: The ce...

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