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प्रश्न
What is ten per cent law? Explain with an example.
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उत्तर
According to the 10 per cent law, only 10 per cent of the energy entering a particular trophic level of organisms is available for transfer to the next higher trophic level.
In the following food chain, only 10 per cent of energy is transferred to the next trophic level. The flow of energy is shown below.
Plants → Grasshopper → Frog → Snake → Hawk
100,000J 10,000J 1,000J 100J 10J
When the energy available at the producer level is 100,000 J, only 10 J of energy is available to the hawk.
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संबंधित प्रश्न
Will the impact of removing all the organisms in a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?
In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?
Plants → Rats → Snakes → Hawks
Which of the following belong to the same trophic level?
Goat ; Spider ; Plants ; Hawk ; Rat
Explain the terms 'producer' and 'consumer'. Give two examples of producers and two of consumers.
What is the difference between the food habits of organisms belonging to the first and the third trophic levels? Give one example each of the organisms belonging to these two trophic levels.
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(a) giraffe
(b) antelope
(c) algae
(d) alligator
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Write a food chain comprising all the given organisms.
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Name two zooplanktons.
If 5 joules of energy is available at producer level (plants), then how much energy will be transferred to the lion in the following food chain?
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Which other organism you could write in place of bird in the above food chain?
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The process of accumulation of harmful chemical substances like pesticides, in the body of living organisms at each trophic level of a food chain is known as ______.
______ obtained energy from the chemical breakdown of dead organisms.
In the given food chain, suppose the amount of energy at the fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
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