Answer
Nitrogen fixing organisms convert nitrogen gas from the atmosphere into ammonia, which is usable by many other organisms. All organisms require nitrogen in order to construct proteins and nucleic acids, so nitrogen metabolism is vital to living things.
Work Step by Step
Nitrogen fixing organisms convert nitrogen gas from the atmosphere into ammonia, which is usable by many other organisms. All organisms require nitrogen in order to construct proteins and nucleic acids, so nitrogen metabolism is vital to living things.