LIFE SCIENCE

Detailed explanation-1: -A food chain is a simple model that shows how energy flows through an ecosystem; a food web is a model representing the many interconnected food chains and pathways which energy flows through a group of organisms.

Detailed explanation-2: -Food Webs. A food web represents multiple pathways through which energy and matter flow through an ecosystem. It includes many intersecting food chains. It demonstrates that most organisms eat, and are eaten, by more than one species.

Detailed explanation-3: -To represent these relationships more accurately, we can use a food web, a graph that shows all the trophic-eating-related-interactions between various species in an ecosystem.

Detailed explanation-4: -Food webs illustrate energy flow from primary producers to primary consumers (herbivores), and from primary consumers to secondary consumers (carnivores).