Pyramid Of Biomass - GCSE Biology Definition

A pyramid of biomass is a diagram that shows the total mass of living organisms (biomass) at each level of a food chain in an ecosystem. Each level of the pyramid represents a trophic level, such as producers, herbivores, and carnivores. The base is the widest and represents producers, like plants, which have the most biomass. As you move up the pyramid, each level becomes narrower because biomass decreases at each stage. This is mainly due to energy being lost through processes like respiration, heat, movement, and waste. A pyramid of biomass helps to visualise the flow of energy and the structure of ecosystems.