Botany - Ecosystem Question with Solution | TestHub

Each trophic level has a certain mass of living material at a particular time called the standing crop. The standing crop is measured as the mass of living organisms (biomass) or the number in a unit area. An ocean ecosystem is largely dominated by the plankton population. The given diagram shows an inverted pyramid of biomass with a small standing crop of phytoplankton supporting a large standing crop of zooplankton.