The diagram shows the energy trapped as biomass at each stage of a food chain:
phytoplankton (25 000 kJ)⟶zooplankton (2 500 kJ)⟶small fish (375 kJ)⟶large fish (45 kJ) \text{phytoplankton (25 000 kJ)} \longrightarrow \text{zooplankton (2 500 kJ)} \longrightarrow \text{small fish (375 kJ)} \longrightarrow \text{large fish (45 kJ)} phytoplankton (25 000 kJ)⟶zooplankton (2 500 kJ)⟶small fish (375 kJ)⟶large fish (45 kJ)What is the percentage efficiency in the transfer of energy between the zooplankton and the small fish?
1.5%1.5\%1.5%
12%12\%12%
15%15\%15%
85%85\%85%