Post-UTME Biology 2015 Objective — Question 9
Question 9 of 20 from the Post-UTME Screening (Post-UTME) Biology 2015 Objective paper, with the correct answer and a full explanation.
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The fixation of free nitrogen in the soil is carried out by
- A. Nitrobacter
- B. Nitrosomonas
- C. AzotobacterCorrect
- D. Mycobacteria
Explanation
Azotobacter is a free-living, nitrogen-fixing bacterium in the soil that converts atmospheric nitrogen into usable forms.
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