Autotrophs are examples of organisms that can actually create or synthesize energy containing carbon molecules, organic molecules from inorganic starting materials, such as carbon dioxide. So the prime example of Odotropes are plants. Plants are basically able to use inorganic carbon dioxide, mix it with water to actually form the carbohydrate sugar molecules. So that's an example of autotrophs. Autotrophs obtain their carbon source from inorganic materials, while out of heterotrophs need to obtain the organic carbon from other organisms. Now let's move on to our energy source.