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During ecological succession...

During ecological succession

A

The changes lead to a community that is in near equilibrium with the environment and is called pioneer community

B

The gradual and predictable change in species composition occurs in a given area

C

The establishment of a new biotic community is very fast in its primary phase

D

The number and types of animals remain constant

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-ECOSYSTEM-Assignment (Section C)
  1. Most animals that live in deep oceanic wa- ters are

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  2. In which of the following both pairs have correct combination?

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  3. During ecological succession

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  4. Vertical distribution of different species occupying different levels ...

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  5. In an ecosystem the rate of production of organic matter during photos...

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  6. Secondary succession takes place on/in

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  7. The mass of living material at a trophic level at a particular time is...

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  8. Match the following and select the correct option :

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  9. Given below is a simplified model of phosphorus cycling in a terrestri...

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  10. If 20J of energy is trapped at producer level, then how much energy wi...

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  11. Natural reservoir of phosphorus is

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  12. Secondary productivity is rate of formation of new organic matter by

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  13. Which one of the following processes during decomposition is correctly...

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  14. Which one of the following is not a functional unit of an ecosystem

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  15. The upright pyramid of number is absent in

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  16. Which one of the following is not a gaseous biogeochemical cycle in ec...

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  17. Given below is an imaginary pyramid of numbers. What could be one of t...

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  18. Identify the possible link ''A'' in the following food chain Plant ...

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  19. The rate of formation of new organic matter by rabbit in a grassland, ...

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  20. The second stage of hydrosere is occupied by plants like

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