A diagram that shows an ecosystem's loss of energy at each level of the food chain is what?

A diagram that illustrates an ecosystem's loss of energy at each level of the food chain is called a trophic pyramid or energy pyramid. It represents the hierarchy of energy transfer from producers at the base to various levels of consumers above. As energy moves up the pyramid, it diminishes significantly, typically losing about 90% at each trophic level due to metabolic processes and heat loss. This concept highlights the inefficiency of energy transfer in ecosystems.