 
<translate> Biomass bụ ngụkọta nke ihe ndị dị ndụ na ọkwa trophic. A na-akpọ ihe ka ọtụtụ n'ihe ndị dị ndụ ihe ndị dị ndụ. Biomass bụ ngụkọta nke ihe ndị dị ndụ na ọkwa trophic. Azịza ya bụ (A). <eng> Biomass is the total mass of organisms at a trophic level. Most living things are called organisms. Biomass is the total mass of living things at a trophic level.
So, the answer is (A). 