(4) Heterotroph-Horse

Meaning “other-feeder,” a heterotroph is an organism that obtains its carbon atoms from other organic compounds. This categorization can be split up further into chemoheterotrophs (obtaining energy from chemicals) and photoheterotrophs (obtaining energy from light). The latter is not to be confused with photoautotrophs, which use sunlight to generate their own food. Regardless, all heterotrophs must utilize an outside source to gain energy.  As the picture above suggests, this horse is an example of a heterotroph, as it is grazing on grass (another organic compound) in order to obtain energy.


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