They differ in one fundamental way:
Autotrophs fix their own energy. (They are the producers of the ecosystem.)
Heterotrophs must get their energy from other sources. (They are the consumers, detritivores, or decomposers of the ecosystem.)
A potato is an autotroph.
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Autotroph is not a verb and therefore does not have a past tense. Autotroph is a noun.
autotroph, because it creates energy by itself from basic parts, using sun energy and CO2.
kingdom archaebacteria is both heterotroph and autotroph
The panda is an autotroph.
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