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Biological nitrogen fixation is the proc...

Biological nitrogen fixation is the process of fixation of atmospheric nitrogen into the soil by the action of microorganisms. Examples of biological nitrogen fixers include ____i____ and ____ii____ The information in which alternative completes the given statement?

A

i-viruses, ii-fungi

B

i-fungi, ii - blue-green algae

C

i-blue-green algae, ii - bacteria

D

i-bacteria, ii - viruses

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