The diagram shows the energy stored in biomass per year at each trophic level of a marine food chain.
What is the percentage efficiency of the energy transfer from the zooplankton to the herring?
8.0%8.0\%8.0%
12.0%12.0\%12.0%
12.5%12.5\%12.5%
15.0%15.0\%15.0%