Question

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

5 kJ
50 kJ
500 kJ
5000 kJ

Answer 1

Answer:

The correct option is D

Explanation:

♦ According to 10 percent law, 90% of the energy captured from the previous trophic level is lost to the environment and only 10 percent is made available to the next trophic level.

♣ In this food chain, at the 4th trophic level, 5 kJ energy is available to the snake

⇒ Energy available to Frog = 10% of 50 kJ

⇒ Energy available to Grasshopper = 10% of 500 kJ

⇒ Energy available to Grass = 10% of 5000 kJ.

Answer 2

Explanation:

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