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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
Give diagrammatic representation of pyramid of numbers.
Distinguish between a food chain and a food web.
“The pyramid of biomass is not always upright.” Explain the statement.
Write any two limitations of ecological pyramids.
Distinguish between the upright and inverted pyramid of biomass.
In a pyramid of biomass, if the total dry weight (kgm-2) of primary produces is about 809, it well increases at tertiary consumer level up to ______.
Pyramid of biomass in terrestrial ecosystem shows sharp decline in
A graphic representation of the biomass relationship between the producer and consumer in an ecosystem is called ______.
Give a scientific reason:
The pyramid of energy is always upright.
| 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.
