Which type of pyramid shows best efficiency of ecosystem? (a) Pyramid of numbers (b) Pyramid of biomass (c) Pyramid of volume (d) Pyramid of energy
Option D. An energy pyramid is a graphical model of energy flow in a community. Pyramid indicates not only the amount of energy flow at each level but more importantly, the actual role the various organisms play in the transfer of energy. An energy pyramid illustrates how much energy is needed as it flows upwards to support the next trophic level. Energy pyramids are always slopping because less energy is transferred from each level than was paid into it. Thus, the efficiency of any ecosystem is best depicted by a pyramid of energy.
