in the food pyramid there is typically less biomass at the top in three sentences explain this phenomenon citing evidence relating to energy flow and how plants support ecosytems
In a food pyramid, there is typically less biomass at the top because energy is lost as it flows through the food chain. The majority of energy is captured by plants through photosynthesis, so they form the base of the pyramid and support higher trophic levels. As consumers eat plants and other organisms, only a fraction of the energy is transferred to the next trophic level, resulting in lower biomass at the top of the pyramid. This energy loss is a fundamental principle of ecology known as the 10% rule, where only about 10% of energy is transferred between trophic levels.
