Ultimately, the nitrogen cycle is dependent on: A)microorganisms that convert atmospheric N₂ into usable forms. B)respiration rates of heterotrophs. C)addition of fertilizers to the soil. D)nitrogenous waste production in different environments.

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Quizplus · Accepted Answer

The nitrogen cycle relies on the activity of microorganisms, such as bacteria and fungi, that can convert atmospheric nitrogen into a form that is usable by plants and other organisms. This process, called nitrogen fixation, is essential for the availability of nitrogen in ecosystems. While respiration rates, fertilizer addition, and nitrogenous waste production can all impact the nitrogen cycle, they are not the ultimate drivers of the cycle.

Ultimately, the Nitrogen Cycle Is Dependent On