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प्रश्न
In the following food chain, only 2J of energy was available to the peacocks. How much energy would have been present in Grass? Justify your answer.
GRASS → GRASS HOPPER → FROG → SNAKE → PEACOCK
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उत्तर
According to ten percent law, only ten percent of energy is transferred to each trophic level from the lower trophic level.
Total amount of energy from the snake = A = `"A" xx 10/100` = 2J
Or A = 20 J
Total energy from the frog = B = `"B" xx 10/100 = 20`J
Or B = 200 J
Total energy from the grasshopper,
C = `"C" xx 10/100` = 200 J
Or C = 2000 J
Total energy from the grass,
D = `"D" xx 10/100` = 2000 J
Or D = 20000 J
\[\ce{\underset{(20000 J)}{GRASS} -> \underset{(2000 J)}{GRASS HOPPER} -> \underset{(200 J)}{FROG} -> \underset{(20 J)}{SNAKE} -> \underset{(2J)}{PEACOCK}}\]
This means, the amount of energy present in the grass is 20000 J.
संबंधित प्रश्न
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Which group of organisms are not constituents of a food chain?
- Grass, lion, rabbit, wolf
- Plankton, man, fish, grasshopper
- Wolf, grass, snake, tiger
- Frog, snake, eagle, grass, grasshopper
If a harmful chemical enters a food chain comprising peacocks, plants, rats and snakes, which of these organisms is likely to have the highest concentration of the chemical in its body? Justify your answer. Name the process involved and define it.
