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What is sere ? It constitutes how many t...

What is sere ? It constitutes how many types of communities .

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Whole sequence of events occuring in biotic succession is called sere. Three types of communities i.e., pioneer, transitional and climax.
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AAKASH INSTITUTE-ECOSYSTEM-Section - D (Assertion - Reasion Type questions)
  1. What is sere ? It constitutes how many types of communities .

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  2. A: Agriculture and aquacultures are man maintained ecosystems. R: Al...

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  3. Assertion: Warm and moist environment can enhance the rate of decompos...

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  4. Assertion: Detritus food chain begins with decomposers. Reason: Det...

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  5. Assertion: Ecological pyramids cannot explain all vital functions of a...

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  6. Assertion: Successional process starts only in those areas where no li...

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  7. Secondary productivity is rate of formation of new organic matter by:

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  8. A: Detrivores and decomposers hold up a part of nutrients contained i...

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  9. A: Neither the community modifies environment nor the environment forc...

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  10. A: Ecological pyramid of biomass is generallly inverted in sea R: Bi...

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  11. A: Pyramid of biomass is always upright for tree ecosystem. R: Total...

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  12. A: Niche become general and broader during biotic succession. R: Spe...

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  13. A: Stratification helps in accommodation of a large number and types o...

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  14. A: During succession , nutrient availability decreses while level incr...

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  15. A: Decomposerws are excluded form the food chains. R: They act on a...

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  16. A: In hydrosere , reed swamp stage is followed by floating plant stag...

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