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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:
B
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PRADEEP-ECOSYSTEM-Multiple choice question
  1. Identify the possible link ''A'' in the following food chain Plant ...

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

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  3. The upright pyramid of number is absent in

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

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

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  6. The important steps in the process of decomposition are

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  7. In an ecosystem , at a particular time, standing crop includues

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  8. In a pyramid of biomass, if the total dry weight (kg//m^(2)) of primar...

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  9. Natural reservoir of phosphorus is

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

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  11. Most animals that live in deep oceanic waters are:

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

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  13. During ecological succession

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  14. Which one of the following is a characteristic feature of cropland eco...

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  15. Which of the following would appear as the pioneer organisms on bare r...

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  16. The term ecosystem was coined by

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  17. The primary producers of the deep-sea hydrothermal vent ecosystem are:

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  18. Which ecosystem has the maximum biomass ?

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  19. Presence of plants arranged into well defined vertical layers dependin...

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  20. What type of ecological pyramid would be obtained with the following d...

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