Concept:An ecological pyramid shows the relationship between organisms at different trophic levels. The pyramid of energy specifically illustrates how energy is transferred and stored at each level in a food chain.Explanation:Energy flow in an ecosystem is unidirectional. It starts with producers and moves up through consumers. The pyramid of energy always remains upright because only about 10% of energy passes from one trophic level to the next. This pyramid is directly linked to a food chain, which is a linear sequence of who eats whom. It does not represent a food web, which is a complex network of multiple chains.
