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प्रश्न
'The pyramid of energy is always upright.' Explain
उत्तर
The pyramid of energy represents the total amount of energy consumed by each trophic level in a given food chain. An energy pyramid is always upright because the total amount of energy available for utilization in the top levels is less than the energy available in the lower levels. This happens because according to the 10% law of energy transfer, only 10% of the total energy is transferred from one trophic level to another.
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संबंधित प्रश्न
In an ecosystem dominated by trees, the pyramid (of numbers) is _________ type.
Which organisms constitute the last trophic level?
Answer the following question.
What is an ecological pyramid? Compare the pyramids of energy, biomass, and numbers.
Secondary consumers are __________.
Distinguish between the upright and inverted pyramid of biomass.
In a tree ecosystem the pyramid of numbers is:
Which one of the following is not used for construction of ecological pyramids?
Which of the following organism form the decomposers?
Which of the following statements is not correct?
| In a forest ecosystem, a large population of insect feeds upon a banyan tree. Several small birds feed upon these insects. The small birds are fed upon by big-sized birds. |
- With respect to this ecosystem, draw a pyramid for each biomass and a pyramid of number.
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If 20,000 Kcal energy is available at the level of insects, calculate the amount of energy available at the level of big-sized birds.
