Nitrogen is essential to the engird cycle of plants and bacteria. without it they would die. The nitrogen in the air is not in it's biological form, its N2 (abiotic). So the diatomic nitrogen goes through the nitrogen cycle and converted into <span>NH3 or NH4+ its biological form (biotic)</span>
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I am afraid of dying because I love this world and I do not leave this world although we must leave this world one day.
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Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.
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