Jun 9, 2016 · Bacteria play a key role in the nitrogen cycle. Nitrogen enters the living world by way of bacteria and other single-celled prokaryotes, which convert atmospheric nitrogen— N 2 …

Review your understanding of the nitrogen cycle in this free article aligned to AP standards.

Learn about the nitrogen cycle and how nitrogen moves from the atmosphere to living organisms through different chemical forms.

The nitrogen cycle is a crucial process that converts atmospheric nitrogen into a form that plants and other organisms can use. This process, known as nitrogen fixation, is primarily carried out …

Did you know that nitrogen keeps moving through the air, soil, plants, and animals in a never-ending cycle? Created by Shankar Nair.

If you take the carbon and nitrogen cycles, there you have carbon cycling between inorganic CO2 in the atomosphere and organic carbon-based compounds in organisms. There's a chemical …

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Biogeochemical cycles are nature's way of recycling essential elements for life, like water, carbon, nitrogen, and phosphorus. These cycles circulate these molecules through ecosystems and …

Human impacts on the nitrogen cycle There are two main processes by which human activities release nitrogen into the environment: the combustion of fossil fuels and the use of artificial …

Bacteria play a key role in the nitrogen cycle. Nitrogen enters the living world by way of bacteria and other single-celled prokaryotes, which convert atmospheric nitrogen— N 2 —into …