13.2 - Carbon and Nitrogen Cycles

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Carbon Cycle
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Carbon makes up about 20% of our bodies, whereas nitrogen makes up less than 4%. Why is the nitrogen cycle still vital for the survival of all living things?Nitrogen is a crucially important component for all life, it's an important part of many cells and processes such as amino acids, proteins and even our DNA.Plants play an important role in the carbon cycle because they take carbon dioxide from the atmosphere. That carbon is used to create organic molecules that are consumed by animals, which helps drive the carbon cycle. Based on the diagram, what organism(s) play an important role in the nitrogen cycle?Decomposers, because they put nitrogen back in the environment.