Organisms that are able to synthesize all the complex organic molecules they require for life using only simple inorganic compounds and an external energy source. Autotrophs includes most plants, algae, protists, archaea, and some bacteria. The chief inorganic sources of carbon and nitrogen are carb...
Found on
http://www.daviddarling.info/encyclopedia/A/autotrophs.html
Organisms that synthesize their own nutrients; include some bacteria that are able to synthesize organic molecules from simpler inorganic compounds.
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https://www.encyclo.co.uk/local/21571
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