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प्रश्न
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
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उत्तर
Food chain is a linear relationship of 'eating' and 'being eaten' between the organisms present in an ecosystem. According to the energy transfer law, only 10% energy is transferred from one trophic level to another. The energy that is captured at one trophic level cannot move back to the previous trophic level. That is why, the flow of energy in a food chain is always unidirectional.
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संबंधित प्रश्न
Draw the food chain with four trophic levels.
Which of the following is not a producer?
(a) grass
(b) zooplankton
(c) phytoplankton
(d) paddy
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms in the food chain are herbivore, and carnivores?
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name two zooplanktons.
Write the percentage of energy transferred from autotrophs to the next level in a food chain.
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
How much energy will be available to hawks in the food chain comprising hawk, snake, paddy and mice, if 10,000 J of energy is available to paddy from the sun?
Food chains are very important for the survival of most species.
Matter and energy are two fundamental inputs of an ecosystem. Movement of:
______ obtained energy from the chemical breakdown of dead organisms.
Define – Heterotrophs.
