The pyramid shown here can be the pyramid of _____.

The pyramid shown here is an inverted pyramid. Pyramid of energy can never be inverted. Number of producers (i.e., phytoplanktons) in a pond are always more than the consumers thus, pyramid of number in a pond cannot be inverted. In a forest, biomass of producers (i.e., tree) is large, so pyramid of biomass is upright in this case also. Pyramid of biomass for pond ecosystem is inverted as biomass of a trophic level depends on reproductive potential and longevity of its members.