Question

What amount of energy will be available to the organisms of the $2^{nd}$ trophic level of a food chain, if the energy available at the first trophic level is 10,000 joules?

Answer 1

According to Lindeman's 10% law, only 10% of energy is transferred to next level. If energy available at first trophic level is 10,000 Joules, then at second trophic level energy available will be 10% of 10,000 which equals to 1000 Joules.