Final answer:
Living things and rocks are vital components of the phosphorus cycle, which is simpler compared to the nitrogen cycle, involving the movement of phosphates from rocks to ecosystems.
Explanation:
Living things and rocks are components of the phosphorus cycle. Unlike the nitrogen cycle, the phosphorus cycle is simpler and primarily involves the movement of phosphates from rocks to terrestrial and marine ecosystems. Weathering of rocks and volcanic activity release phosphate into the soil and water, where it becomes available to various food webs.
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