The energy pyramid represents the energy of each trophic level in the ecosystem.
In this case we have the following trophic levels:
Primary producers: they create their own food by photosynthesis. GRASS
Primary consumers: these are herbivore organisms. MICE and GRASSHOPPERS
Secondary consumers: these organisms consume primary consumers. SKUNKS
Tertiary consumers: they eat primary and secondary consumers. OWL
In the energy pyramid the with of each bar represents the energy available in the corresponding trophic level.
As the energy flows up in the pyramid, the trophic levels are represented in the following order (bottom to top):
Primary producers; primary consumers; secondary consumers; tertiary consumers.
As a resul the energy pyramid that accurately represents this food web is: