Nitrogen cycling is important for living organisms to survive because nitrogen

Passes from producers to consumers
Is required to make DNA and proteins
Is taken up by plant roots
Makes most of earth atmosphere

Nitrogen cycling is important for living organisms to survive because nitrogen is required to make DNA and proteins, which are essential for the growth, development, and proper functioning of all living cells. Nitrogen is also taken up by plant roots to support plant growth and is passed from producers (plants) to consumers (animals) through the food chain. Additionally, nitrogen plays a key role in the earth's atmosphere, comprising the majority of the air we breathe.