Term
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Definition
| 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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Term
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Definition
| the chemical substances that an organism needs to sustain life |
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Term
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Definition
| process of converting nitrogen gas into nitrogen compounds that plants can absorb and use |
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Term
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Definition
| process by which bacteria converts nitrates into nitrogen gas |
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Term
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Definition
| single essential nutrient that limits productivity in an ecosystem |
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