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प्रश्न
In a food chain, the herbivores are represented by
(A) producers
(B) primary consumers
(C) secondary consumers
(D) decomposers
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उत्तर
primary consumers
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संबंधित प्रश्न
“It is often said that the pyramid of energy is always upright. On the other hand, the pyramid of biomass can be both upright and inverted.” Explain with the help if examples and sketches.
Answer the following question.
What is an ecological pyramid? Compare the pyramids of energy, biomass, and numbers.
'The pyramid of energy is always upright.' Explain
Secondary consumers are __________.
Give an example of an ecosystem that shows an inverted pyramid of numbers.
Pyramid of biomass in terrestrial ecosystem shows sharp decline in
Which of the following statements is not correct?
Name any two organisms which can occupy more than one trophic level in an ecosystem.
What are the shortcomings of ecological pyramids in the study of ecosystems?
| 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.
