They are all types of ecological pyramids. A number pyramid shows the number of individuals in each trophis level. The biomass pyramid is slightly different. It shows the total amount of living things in each level. The energy pyramid. I feel is the most important. It shows how much energy (calories) are available in each trophic level. Energy is transferred from one level to the next. Only 10% of the energy is passed along. the other 90% is lost as heat. The base of the pyramid is the producer level. Above that you have the levels of consumers.