 
 <translate> Biomass is the total mass of organisms at a trophic level. An organism is a living thing. Biomass is the total mass of living things at a trophic level.
So, the final answer is (E). <ibo> Biomass bụ ngụkọta nke ihe ndị dị ndụ na ọkwa trophic. Ihe dị ndụ bụ ihe dị ndụ. Biomass bụ ngụkọta nke ihe ndị dị ndụ na ọkwa trophic. Ya mere, azịza ikpeazụ bụ (E). 