In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen? * They move into and out of living systems. O They are only found in abiotic factors. O They move out of living systems and do not return. O They move into living systems and remain there.

They move into and out of living systems

Explanation:

The gases in an ecosystem like carbon, nitrogen, and oxygen all move into and out of the living systems through the process of animal respiration and plant absorption of carbon and release of oxygen. They are found on diffused forms in blood and cells of body, can be found in aquatic and terrestrial components. They are processed through animal wastes and in the consumption of matter.