Question
Which of the following species does not have the ability to fix atmospheric nitrogen?
Answer: Option D
:
D
Some microbes have the ability to fix atmospheric nitrogen and convert it into a usable form that plants can make use of. These microbes are of two types, free-living and symbiotic. Nostoc, Anabaena, Azorobacter are free-living bacteria that fix nitrogen in the soil. Spirogyra on the other hand is type ofa blue green algae that does not have the ability to fix atmospheric nitrogen.
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:
D
Some microbes have the ability to fix atmospheric nitrogen and convert it into a usable form that plants can make use of. These microbes are of two types, free-living and symbiotic. Nostoc, Anabaena, Azorobacter are free-living bacteria that fix nitrogen in the soil. Spirogyra on the other hand is type ofa blue green algae that does not have the ability to fix atmospheric nitrogen.
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