Answer :
Final answer:
Autotrophs are organisms that can produce their own food using energy from the sun or chemical energy, serving as the foundation of ecosystems, with photoautotrophs and chemoautotrophs being examples.
Explanation:
Autotrophs are organisms that use energy directly from the sun or from chemical bonds to produce organic molecules from simple inorganic compounds. They are vital in ecosystems as producers, providing the foundation of food chains. Autotrophs include photoautotrophs like plants and chemoautotrophs like certain bacteria.
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