Answer:
The correct answer 10%. Only 10% of the total energy is transferred to the next trophic level.
Step-by-step explanation:
While energy moving from the one trophic ;level to another is lost in many processes.
The transfer is not the 100% due to some reasons like the maintenance of that trophic level.
90 Percent of the produced energy is used in the reproduction of the organisms, their growth, in respiration , movement fighting and other life maintaining processes.
Hence only 10% energy is reached to next trophic level.