AP BIOLOGY

Detailed explanation-1: -Sedimentary rocks are the largest reservoir of the phosphorous .

Detailed explanation-2: -The ocean sediments are therefore by far the greatest reservoirs of phosphorus. In terrestrial ecosystems, much of the available phosphorus moves in a closed cycle between living organisms and the organic debris in the soil.

Detailed explanation-3: -Explanation: The reservoir of phosphorus in ecosystems is rock, where it is bound to oxygen in the form of phosphate. As phosphate-rich rocks are exposed and eroded, rainwater dissolves the phosphate. Dissolved phosphate is abosrbed through the roots of plants.

Detailed explanation-4: -Phosphorus is naturally stored in rocks. Phosphates, a kind of phosphorus, are found in the rock. Sedimentary rocks are the greatest phosphorus reservoir among the various types of rocks.

Detailed explanation-5: -Phosphorus is the second most abundant mineral in the body, second to calcium. About 85% of the body’s phosphorus is stored in bones and teeth.