What measure is the total mass of organisms at a trophic level?
phosphorus
detritus
atomic mass
biomass
Biomass is the total mass of organisms at a trophic level. With less energy at higher trophic levels, there are usually fewer organisms as well. This is also represented in the pyramid in Figure above . Organisms tend to be larger in size at higher trophic levels. However, their smaller numbers result in less biomass.