Biomass is the total mass of organisms at a trophic level, and trophic level refers to the organisms position in the food chain. Given these facts, what is biomass the total mass of among the following options:
- remains of prehistoric life
 - nutrients
 - dead weight
 - organisms on the food chain
 - Microscopic organisms
 - h2o
 - sub-units of species
 - The number of individuals


 

    organisms on the food chain     