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  • 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 k J (b) 50 k J (c) 500 k J (d) 5000 k J

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 \rightarrow Grasshopper \rightarrow Frog \rightarrow Snake \rightarrow Hawk
(a) 5 k J
(b) 50 k J
(c) 500 k J
(d) 5000 k J

Answers (1)

(d)
According to 10% law, only 10% of the energy entering a particular trophic level of organisms is available for transfer to the next higher trophic level. So basically, top level has 10 times more energy than the level we are in

Given 4th trophic level has 5kJ of energy

4th level has ---------------- 5 k J

3rd level has ---------------- 5 k J × 10

2nd level has ---------------- 5 k J × 10 × 10

1st level has ---------------- 5 k J × 10 × 10 × 10 = 5000 k J

Therefore option (D) is correct

Posted by

infoexpert27

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