AP BIOLOGY

Detailed explanation-1: -Steps of Phosphorus Cycle Weathering. Absorption by Plants. Absorption by Animals. Return to the Environment through Decomposition.

Detailed explanation-2: -Erosion flushes mineral bound phosphorus out of agricultural soils into wetlands and water bodies, where the excess of nutrients (called eutrophication) harms the aquatic plant and animal communities.

Detailed explanation-3: -Much of the phosphorus on Earth is tied up in rock and sedimentary deposits, from which it is released by weathering, leaching, and mining. Some of it passes through freshwater and terrestrial ecosystems via plants, grazers, predators, and parasites, to be returned to those ecosystems by death and decay.