You are presented with the quiz "What is a biomass' position in the food chain called?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "biomass is the total mass of organisms at a trophic level" and "trophic level refers to the organisms position in the food chain". 

So, what's the best answer to the question?


 

      Trophic level     