Question

multiple choice 2 points which cycle involves both photosynthesis and cellular respiration? nitrogen phosphorus water carbon

Explanation:

Photosynthesis uses carbon - dioxide and water to produce glucose and oxygen, while cellular respiration uses glucose and oxygen to produce carbon - dioxide and water. Carbon is cycled through these two processes. The water cycle mainly involves physical changes of water and not directly related to these two biological processes in the same way. The phosphorus cycle is about the movement of phosphorus in the environment and not related to photosynthesis and cellular respiration. The nitrogen cycle is about nitrogen transformation and not directly tied to these two key processes in the way carbon is.

Answer:

A. Carbon