Define the term keyword facts and figures about heterotroph
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A heterotroph is an organism that cannot manufacture its own food by carbon fixation and therefore derives its intake of nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are secondary and tertiary consumers.
There are two forms of heterotroph. Photoheterotrophs use light for energy, although are unable to use carbon dioxide as their sole carbon source and, therefore, use organic compounds from their environment. Heliobacteria and certain proteobacteria are photoheterotrophs. Alternatively, chemoheterotrophs obtain their energy from ingesting preformed organic energy sources such as lipids, carbohydrates and proteins which have been synthesized by other organisms.
By consuming reduced carbon compounds, heterotrophs are able to use all the energy that they consume for growth, reproduction and other biological functions.
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