Dr Rana Hamza Shakil thank you for your contribution to the discussion

The pyramid of energy shows the rate of energy flow and/or productivity at successive trophic levels. The pyramid of numbers shows the relationship between producers and consumers at successive trophic levels in terms of their number. In this pyramid energy in each trophic level is considered as a level in the pyramid. Biomass pyramids show the relative amount of biomass in each of the trophic levels of an ecosystem. Biomass is simply the mass of living things in a particular trophic level. Terrestrial ecosystems usually have much more biomass in plants, such as trees and grass, and less biomass as you move up in trophic levels. A pyramid of energy shows the relative amount of energy available at each trophic level of a food chain or web. On average, about 10 percent of the energy available within one trophic level is transferred to the next level. A biomass pyramid is the representation of total living biomass or organic matter present at different trophic levels in an ecosystem. Biomass is calculated as the mass of living organisms present at each trophic level in a given sample size. It can be represented as dry weight in grams or calories per unit area.Describe why the pyramid shape is used to represent energy, biomass, and numbers pyramids. The pyramid is used because it can represent energy available at every trophic level, and at each level everything gets smaller as you go up the pyramid. An ecological pyramid is a graphical representation showing the relationship between different organisms in an ecosystem. It shows the flow of energy at different trophic levels in an ecosystem. Pyramid of number is an ecological / Eltonian pyramid. It is a graphical representation of a number of individuals at each trophic level. It puts organisms sequence-wise, with producers at the base and various consumers at successively higher levels.