Question

Where does the carbon come from in an ecosystem

Answer 1

The source of the carbon found in living matter is carbon dioxide (CO2) in the air or dissolved in water.

Step-by-step explanation:

Answer 2

The source of the carbon found in living matter is carbon dioxide (CO2) in the air or dissolved in water. Algae and terrestrial green plants (producers) are the chief agents of carbon dioxide fixation through the process of photosynthesis, through which carbon dioxide and water are converted into simple carbohydrates.