Which free-living nitrogen-fixing cyanobacter | vedclass

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(D) The cyanobacterium $Anabaena$ $azollae$ is a nitrogen-fixing organism that lives in a symbiotic association with the water fern $Azolla$. It resid

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Anabaena

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(D) The cyanobacterium $Anabaena$ $azollae$ is a nitrogen-fixing organism that lives in a symbiotic association with the water fern $Azolla$. It resides within the leaf cavities of $Azolla$,providing fixed nitrogen to the plant in exchange for carbohydrates and a protected environment. This association is widely used as a biofertilizer in rice cultivation.

Which free-living nitrogen-fixing cyanobacterium shows a symbiotic relationship with the water fern Azolla?

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