A soil bacteria that changes into forms that plants can take up through their roots.

A cycle that describes how nitrogen moves from the atmosphere to the soil, to living organisms, and then back to the atmosphere.

A cycle that describes how phosphorus moves from soil to producers and consumers, and back to soil.

A cycle that describes how carbon and moves between the living nonliving environment.

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Key Terms Page 568

Key Terms on Page 568

Term	Definition
Nitrifying Bacteria	A soil bacteria that changes into forms that plants can take up through their roots.
Nitrogen Cycle	A cycle that describes how nitrogen moves from the atmosphere to the soil, to living organisms, and then back to the atmosphere.
Phosphorus Cycle	A cycle that describes how phosphorus moves from soil to producers and consumers, and back to soil.
Carbon	A cycle that describes how carbon and moves between the living nonliving environment.