Name a free-living and symbiotic bacterium that serve as bio-fertilizer. Why are they so called ?Name a free-living and symbiotic bacterium that serve as bio-fertilizer. Why are they so called ?
Name a free-living and symbiotic bacterium that serve as bio-fertilizer. Why are they so called ?
Name a free-living and symbiotic bacterium that serve as bio-fertilizer. Why are they so called ?
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