Give a brief explanation of why food webs are preferred over food chains for representing the flow of energy in an ecosystem.

Food webs are nothing more than several connected food chains, so the energy flow is shown more completely and more detailed than what is shown in a food chain.

Explanation:

When we talk about feeding relationships between organisms and energy transfer, we soon remember the food chain. This chain, however, does not faithfully represent the flow of energy and nutrients in the ecosystem, which is best represented by food webs.

Food webs are nothing more than several connected food chains. Webs are complex and show more faithfully how nutrient and energy flow occurs in an ecosystem, since there are no isolated chains in nature. In the case of food webs, energy and nutrient flow occurs in a multidirectional manner.

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the sphincter muscles at the end of the digestive tract is the anus.