Which of the following best defines a food web?

A chain of organisms in which each link feeds on the one ahead to gain energy.

A food web consists of all the food chains in a single ecosystem. ... Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

Explanation:

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lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.