Which type of diagram shows the number of trophic levels an ecosystem

supports?

The answer is an energy pyramid.

Explanation:

An energy pyramid shows is a graph that represents the flow of energy at each trophic level that is part of an ecosystem. They are sometimes also called a trophic pyramid or an ecological pyramid. The width of each bar in the pyramid shows the level of energy available within each trophic level. This shows how the energy flows through the food chain. The graph also represents when an ecosystem is healthy in the sense that with a healthy ecosystem the graph produces a symmetrical pyramid. In healthy systems more energy needs to be available at the lower levels to support the organisms that are in abundance versus those that are fewer in number.