The term for a group of interconnected food chains in an ecosystem is known as a food web. A food web illustrates the complex relationships among organisms, depicting how energy and nutrients flow through various trophic levels. It consists of multiple pathways through which different species interact, demonstrating the interdependence of organisms. Understanding food webs is vital for assessing ecosystem stability and health, as disruptions in one part can significantly influence other components. By studying food webs, ecologists can gain insights into species interactions and the implications for biodiversity and conservation strategies within ecosystems.