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प्रश्न
The following statement is true or false:
Only 10 per cent of the light energy given by the sun is available for transfer at each higher trophic level in a food chain.
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उत्तर
False.
Explanation:
Only about 1% of the solar energy falling on plants is captured by autotrophs (green plants) through photosynthesis. Of the energy stored at one trophic level, only about 10% is transferred to the next trophic level.
Therefore, 10% refers to the transfer of energy from one trophic level to the next, not to the solar energy received from the Sun.
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संबंधित प्रश्न
Give reason to justify the following: The existence of decomposers is essential in a biosphere.
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What is biological magnification?
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
In the following food chain, 20,000 J of energy was available to the plants. How much energy would be available to man in this chain?
Plants → Sheep → Man
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
Fill in the following blank with suitable word :
Decomposer organisms are..........in their action.
Write one or two word for the following statement/definition :
Organisms which depend on the producers for food either directly or indirectly
Organisms of a higher trophic level which feed on several types of organisms belonging to a number of lower trophic levels constitute the ______.
In the food chain comprising of a snake, grass, insect, and frog, the secondary consumer is :
(a) insect
(b) snake
(c) frog
(d) grass
The sea water contains water beetles, tadpole, fish and weeds.
- Write a food chain comprising all the given organisms.
- Which organisms in the food chain are (i) herbivore, and (ii) carnivores?
- Which organisms are (i) predators, and (ii) prey?
- Which organisms can trap solar energy to make food?
- Which organism is a secondary consumer?
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms can trap solar energy to make food?
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Which organism in the above food chain is a (1) primary consumer, and (2) tertiary consumer?
What does garbage consist of?
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(a) carnivore
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(b) transfer of ATP energy into muscular energy
(c) transfer of chemical energy from one organism to another
(d) transfer of sun's energy to the organisms called producers.
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A food chain in a forest ecosystem
