what is biological fixation? how is it diffrent from nitrification? give an example of an organism that is involved in each of these cases.
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biological fixation is converting atmospheric nitrogen into nitrogenous compounds which plant require this occurs in presence of bacteria associated with the plants.
ex:-Azotobacter,Nostoc,anabena.
nitrification is conversion of ammonia into nitrites and nitrates as plants take nitrogen in form of nitrates mostly..
ex:-nitrococcus,Nitrosomonas..etc
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