nitrogen fixing bacteria cannot fix N2 in presence of ________
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Light
Please answer with full explanation.
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b)Oxygen
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Answer:
a) Oxygen
Step-by-step explanation:
Many nitrogen-fixing organisms exist only in anaerobic conditions, respiring to draw down oxygen levels, or binding the oxygen with a protein such as leghemoglobin. So the answer is O2.
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