Final answer:
An autotroph is an organism that makes its own food through a process called photosynthesis.
Step-by-step explanation:
An autotroph is an organism that makes its own food through a process called photosynthesis. Autotrophs convert sunlight, carbon dioxide, and water into glucose (a form of energy) and oxygen. This ability to produce their own food sets autotrophs apart from heterotrophs, which rely on consuming other organisms for their energy needs.
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