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प्रश्न
“The pyramid of biomass is not always upright.” Explain the statement.
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उत्तर
(i) The pyramid of biomass in sea is generally inverted because the biomass of fishes far exceeds than that of phytoplanktons.
(ii) The pyramid of biomass in terrestrial ecosystems are upright because producers are more in biomass than in herbivores, herbivores are more in biomass than in carnivores.
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संबंधित प्रश्न
Give diagrammatic representation of pyramid of numbers.
Describe with examples of pyramids of number and biomass.
Secondary consumers are __________.
Give an example of an ecosystem that shows an inverted pyramid of numbers.
Pyramid of energy in grassland and pond ecosystem is always ______.
Which of the following organism form the decomposers?
Which of the following statements is not correct?
What does the base tier of the ecological pyramid represent?
What are the three types of ecological pyramids? What information is conveyed by each pyramid with regard to structure, function and energy in the ecosystem?
| 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.
