Exercises: The biomass pyramid
Practice★★☆
Explain the difference between an energy pyramid and a biomass pyramid. Describe in which case the biomass pyramid can appear inverted (give an example of a marine…
Explain the difference between an energy pyramid and a biomass pyramid. Describe in which case the biomass pyramid can appear inverted (give an example of a marine ecosystem with phytoplankton) and why the energy pyramid is never inverted.
Practice★★★
In a grassland, the biomass of four groups was measured: grasses, 8,000 kg; grasshoppers, 800 kg; mice, 80 kg; snakes, 8 kg. Order the groups into trophic levels, build…
In a grassland, the biomass of four groups was measured: grasses, 8,000 kg; grasshoppers, 800 kg; mice, 80 kg; snakes, 8 kg. Order the groups into trophic levels, build (describing it in words and numbers) the biomass pyramid, and calculate what percentage of the total biomass corresponds to the producers.