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Test: GRE Subject Test: Biology
1. | The phosphorus cycle is fundamentally different from the nitrogen and sulfur cycles. How so? |
The phosphorus cycle does not include a gaseous phase, resulting in no significant quantities of atmospheric phosphorus.
Phosphorus is cycled back into the soil through precipitation.
Phosphorus is not taken up by plants and is a strictly inorganic cycle.
Phosphorus does not enter the cycle from weathering of sediments and parent material.
Phosphorus is not fixed in the atmosphere by lightning.
Andrew
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