Osteoporosis is a disease that affects the bones and leads to an increase in bone fractures. Osteoporosis is most likely to be affected by which cycle?

Osteoporosis weakens bones, and bones contain large amounts of phosphorus combined with calcium in mineral compounds. The phosphorus cycle describes how phosphorus moves through living things, soil, and water, including its role in building bones. Therefore, the phosphorus cycle is the best choice.

AI-written and checked against the verified answer.