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Mineral Nutrition

Question
CBSEENBI11002431

The free-living, anaerobic nitrogen - fixer is 

  • Beijerinckia

  • Rhodospirillum

  • Rhizobium

  • Azotobacter

Solution

B.

Rhodospirillum

Rhodospirillum is free - living, anaerobic, nitrogen fixer. Both Beijerinckia and Azotobacter are free-living, nitrogen - fixing, aerobic microbes. Rhizobium is a symbiotic, nitrogen-fixer.