What do ecologists call a pathway that shows what eats what?

Ecologists refer to a pathway that illustrates what eats what as a "food chain" or "food web." A food chain is a linear sequence showing how energy and nutrients flow from one organism to another, typically starting with producers and moving through various levels of consumers. A food web, on the other hand, is a more complex representation that includes multiple interconnected food chains, illustrating the various feeding relationships within an ecosystem.