What does a pyramid of biomass represent?

a. range of food webs found in one trophic level
b. amount of living tissue within a trophic area
c. percentage of energy that's passed through each trophic level
d. number of total organisms within each trophic level

B. Amount of living tissue within a trophic area

Explanation: I just took the test

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.

i am positive it is c. condensing but i may be wrong