Which concept is described as showing that energy can never be destroyed and neither can it be created?

• A. Pyramid of numbers
• B. Energy pyramid
• C. Pyramid of biomass
• D. Pyramid of productivity

Answer: (C)

Energy cannot be created or destroyed; it is transformed and flows through living systems. In ecosystems, producers capture energy from the sun and convert some of it into biomass. As energy moves up the food chain—from producers to herbivores to predators— most of it is used for metabolism or lost as heat, so only a portion remains stored as biomass at each level. The pyramid of biomass shows this pattern directly: the amount of living matter tends to decrease at higher trophic levels because there isn’t enough energy left to support large biomassups at those levels. In this sense, biomass reflects how energy is partitioned and why higher levels have less stored energy, even though the overall energy in the system is conserved.