| Front | phosphate cycle |
|---|---|
| Back | phosphate ions in rocks released into soil by weathering phosphate ions taken into plants through roots phosphate ions are transferred through the food chain as animals eat the plants and are turn eaten by other animals phosphate ions are lost from the animals in waste products when the plants and animals die, sapriobionts are involved in the breaking down of the organic compounds releasing phosphate ions into soil Weathering of rocks releases phosphate ions into lakes,seas and rivers which is taken up by aquatic producers |
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