Question

Calculate the amount of energy available to lion in the following food chain if plants have 20,000J of energy available from the sun.
Plant→Deer→Lion.

Answer 1

According to 10% Law,
Plants have 20,000 J energy available.
Plants transferred their 10% energy to deer i.e.
20,000 * 10/100 = 2000 J
Deer received 2000 J energy from the plants and now it transfer 10% energy of itself to lion.

2000 ×10/100= 200 J
Hence, lion will have 200 J energy from deer.