Definition: Sustentor is a concept in environmental science that refers to a living organism that can produce its own food, rather than relying on external sources of food. It was first proposed by Dr. David Suzuki in 1986 and has gained widespread acceptance since then. In simple terms, a sustentor is someone who grows their own food, which means they don't rely on outside sources of nourishment. This can include plants, animals, or even microorganisms that live within the
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