Which of the following is a correct statement about ecosystems. energy and matter flow in one direction only. "energy flows in one direction, matter recycles." matter flows in one direction while energy recycles. energy and matter both recycle repeatedly.

"Energy flows in one direction, matter recycles."

Explanation:

Matter "returns" to the environment by the deutucators. Energy comes from the sun and is transmitted to higher trophic structures.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.