What is a diagram that shows that energy is lost at each level in a food chain?

A diagram that illustrates energy loss at each level in a food chain is called a "pyramid of energy." This pyramid visually represents the amount of energy available at each trophic level, with producers at the base, followed by primary consumers, secondary consumers, and so on. As energy is transferred from one level to the next, approximately 90% of the energy is lost as heat and metabolic processes, resulting in progressively smaller amounts of energy at higher trophic levels. This shape highlights the inefficiency of energy transfer in ecosystems.