In the given food chain, suppose the amount of energy at fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
(a) 5 kJ
(b) 50 kJ
(c) 500 kJ
(d) 5,000 kJ
According to the Kj, only 10% of food energy is transferred from one trophic level to the next level.
Grass is the producer .
Therefore, the energy available at the producer level is 5000kJ.
So, the correct answer is (d).