how food webs is formed in an ecosystem
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Autotrophs are the foundation of every ecosystem on the planet. That may sound dramatic, but it's no exaggeration! Autotrophs form the base of food chains and food webs, and the energy they capture from light or chemicals sustains all the other organisms in the community.
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In the economy of nature, there exists what we call a trophic structure. We understand this like a food chain. Plants and are the primary producers in the trophic structure because they use solar energy and produce food. ... At the base of the economy we draw on ecological resources such as oil, timber, water and metal
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