An energy pyramid, also known as a trophic or ecological pyramid, is a graphical representation of the energy found within the trophic levels of an ecosystem. The bottom and largest level of the pyramid is the producers and contains the largest amount of energy.
Explanation:
An earthworm breaks down dead organic matter in the soil which the plants, sitting one level up in the pyramid, utilize to manufacture their food along with the light from the sun during the photosynthesis process.