Question

What will be the amount of energy available to the organisms of the second tropic level of a food chain,if the energy available at the first trophic level is 10,000 joules?

Answer 1

according to 10 percent rule transfer of energy will be 10 percent of 10,000 so,
10,000×10/100=1,000 joules
1,000 joules Ans.

Answer 2

according to ten percent law , only 10 percent energy is available at each trophic level so in second trophic level there is 0.1 percent of energy is available