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प्रश्न
Give a scientific reason:
The pyramid of energy is always upright.
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उत्तर
The pyramid of energy is always upright; it can never be inverted. Every step from one trophic level to the next results in a loss of energy in the form of heat.
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संबंधित प्रश्न
Give diagrammatic representation of pyramid of numbers.
Describe with examples of pyramids of number and biomass.
Give an example of an ecosystem that shows an inverted pyramid of numbers.
Define ecological pyramids.
Which ecosystem has the maximum biomass?
What does the base tier of the ecological pyramid represent?
Name any two organisms which can occupy more than one trophic level in an ecosystem.
Write a short note on pyramid of numbers and pyramid of biomass.
(a) Draw a pyramid of numbers where a large number of insects are feeding on the leaves of a tree. What is the shape of this pyramid?
(b) Will the pyramid of energy be also of the same shape in this situation? Give a reason for your response.
| 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.
