Primary ProducerPrimary producers are at the first and largest of the trophic levels. A Primary producer is an organism that makes its own food. They make nutrients out of the simple substances in their surroundings. Plants make their food through a process called photosynthesis. Producers are also called autotrophs, which means self-feeder. Primary producers connect to trophic levels because it is the first and largest of the trophic levels.
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