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Yes, an autotroph can create and sustain its own food supply by taking in carbon dioxide and putting out oxygen (cellular respiration) and drawing in water and nutrients from the soil and air around them, and most importantly the leaves need to have a source of sunlight in order to cause photosynthesis a process by which sunlight energy is converted into energy to which the plant can use the nutrients and water to create food for themselves.

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13y ago

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