Which of the following is a group of blue-gre | vedclass

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(B) Blue-green algae (cyanobacteria) are autotrophic microbes that are widely distributed in aquatic and terrestrial environments,many of which can fi

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Anabaena

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(B) Blue-green algae (cyanobacteria) are autotrophic microbes that are widely distributed in aquatic and terrestrial environments,many of which can fix atmospheric nitrogen,such as $Anabaena$,$Nostoc$,and $Oscillatoria$.In paddy fields,blue-green algae serve as an important biofertilizer.$Anabaena$ is a genus of filamentous cyanobacteria that exists as plankton and is known for its nitrogen-fixing capabilities.$Bacillus$ is a bacterium,$Rhizobium$ is a symbiotic nitrogen-fixing bacterium found in root nodules of legumes,and $Azotobacter$ is a free-living nitrogen-fixing bacterium.

Which of the following is a group of blue-green algae that acts as a biofertilizer?

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