Terrestrial ecosystems exhibit upright biomass pyramids, with a broad producer base (e.g., grassland plants) supporting a smaller number of herbivores and carnivores. In contrast, aquatic ecosystems display inverted pyramids. Here, producers like phytoplankton, though having less biomass, sustain a larger consumer biomass, such as fish. The higher productivity at the base characterizes upright pyramids, while rapid phytoplankton turnover leads to inverted ones. Both pyramid structures illustrate energy and biomass transfer, with variations dictated by ecosystem-specific dynamics.% Quick tip