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3.4 Cycles of Matter
vocabulary for 3. Cycles of Matter
5
Biology
9th Grade
10/02/2014

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Term

The biogeochemical cycle is the process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another.

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Nutrients are chemical substances that an organism needs to sustain life.

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Nitrogen fixation is the process of converting nitrogen gas into nitrogen compounds that plants can absorb and use.
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Denitrification is the process by which bacteria convert nitrates into nitrogen gas.
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A Limiting nutrient is the single essential nutrient that limits productivity in an ecosystem.
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