If the energy transferred to a tertiary consumer in a food chain is 10 J, how much energy was available to the primary consumer?(a) 100 J (b) 500 J (c) 1000 J (d) 5000 J

Correct Answer: (c) 1000 J

Explanation: According to the 10 percent law, only 10 percent of the energy available in one trophic level is transferred to the next trophic level.