Which of the following is/are free living nitrogen fixers?
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i thnk the qstn is incomplete...dude.!
wher is the following..
is this a MCQ qstn.?
wher is the following..
is this a MCQ qstn.?
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Two kinds of nitrogen-fixing bacteria are recognized. The first kind, the free-living (nonsymbiotic) bacteria, includes the cyanobacteria (or blue-green algae) Anabaena and Nostoc and genera such as Azotobacter,Beijerinckia, and Clostridium.
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