The free-living,nitrogen-fixing cyanobacteriu | vedclass

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(D) The cyanobacterium $Anabaena$ $azollae$ is a free-living nitrogen-fixing organism. It also forms a symbiotic relationship with the water fern $Azo

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Anabaena

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(D) The cyanobacterium $Anabaena$ $azollae$ is a free-living nitrogen-fixing organism. It also forms a symbiotic relationship with the water fern $Azolla$ by residing in the leaf cavities of the fern. In this association,$Anabaena$ provides fixed nitrogen to the fern,while the fern provides shelter and nutrients to the cyanobacterium.

The free-living,nitrogen-fixing cyanobacterium which also forms a symbiotic association with the water fern $Azolla$ is.......

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