Final answer:
An autotroph is an organism that can produce its own food using energy from the environment. They are also known as producers, and plants are the most common example of autotrophs.
Step-by-step explanation:
An autotroph is an organism that can produce its own food using energy from the environment. They are also known as producers. Plants are the most common example of autotrophs, as they use sunlight to convert water and carbon dioxide into glucose through the process of photosynthesis. Other examples include algae and some bacteria.
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