Nitrogen Cycle -many elements, including nitrogen, are recycled back and forth between organisms and their environments -nitrogen is necessary for life.

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Presentation transcript:

Nitrogen Cycle -many elements, including nitrogen, are recycled back and forth between organisms and their environments -nitrogen is necessary for life to exist as it is a key component to amino acids and proteins

Nitrogen Cycle -nitrogen is incorporated into plants (producers) by nitrogen fixation and used by animals (consumers) for food and protein synthesis -nitrogen recycling occurs through the excretion of waste products and the death of organisms.

Nitrogen Cycle -sources of nitrogen include: -fertilizer -animal waste -death and decomposition -bacteria (release nitrogen gas) -automobile exhaust -places where nitrogen gets taken in: -plants (through bacteria) -air