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प्रश्न
Which organisms constitute the last trophic level?
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उत्तर
The last trophic level in an ecosystem is formed by top consumers. These are carnivores or predators that are not usually preyed upon by others. They occupy the highest trophic level in the food chain.
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संबंधित प्रश्न
Distinguish between upright and inverted pyramids.
In a food chain, the herbivores are represented by
(A) producers
(B) primary consumers
(C) secondary consumers
(D) decomposers
Explain energy pyramid
Give an example of an ecosystem that shows an inverted pyramid of biomass.
Distinguish between the upright and inverted pyramid of biomass.
Which one of the following is not used for construction of ecological pyramids?
What does the base tier of the ecological pyramid represent?
Draw a diagram of pyramid of energy.
Describe pyramid of energy with the help of diagram.
| 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.
-
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.
