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Describe the Ecological Pyramid. |
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Answer» The base of the pyramid is broad and it narrows down at the apex. The similar shape is obtained when food or energy relationship between organisms at different trophic level. The relationship can be expressed in terms of number, energy or biomass. The base of the pyramid represented by producer and apex is the top consumer; other trophic levels are in between. In most ecosystems, all the pyramids, of number, of energy and biomass are upright. The pyramid of number in a tree ecosystem is inverted. The pyramid of biomass in sea also inverted because the biomass of fishes is far exceeds that of phytoplankton. Pyramid of energy is always upright, can never be inverted, because when energy flows from a particular trophic level to the next, some energy is always lost as heat at each step. |
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