Nutrients undergo recurring use and storage {ecological cycle}. Carbon atoms circulate between organism organic molecules and environment carbon dioxide and calcium carbonate {carbon cycle, ecology}. Nitrogen atoms circulate between organism proteins and environment nitrogen gas, nitrates, and nitrites {nitrogen cycle, ecology}. Phosphorus atoms circulate between organism organic phosphates and environment mineral phosphates {phosphorus cycle}. Water molecules circulate between organism cells and intracellular fluids and environment oceans, clouds, and fresh water {water cycle, ecology}.
Biological Sciences>Ecology>Ecosystem>Ecological Cycle
4-Ecology-Ecosystem-Ecological Cycle
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Date Modified: 2022.0224