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Autotroph

  • Definition: An organism that assimilates energy from either sunlight (green plants) or inorganic compounds (sulfur bacteria). Compare with Heterotroph.

    Source: Ricklefs, Robert E. The Economy of Nature (5th Edition), 2001.

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  • 3:40am 4/6/2015

    User: HisaoTazuka

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    Organisms are divided into autotrophs and heterotrophs according to their energy pathways. Autotrophs are those organisms that are able to make energy-containing organic molecules from inorganic raw material by using basic energy sources such as sunlight. Plants are the prime example of autotrophs, using photosynthesis.