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Which of the following is a characterist...

Which of the following is a characteristic fea- ture of cropland ecosystem

A

Absence of weeds

B

Ecological succession

C

Absence of soil organisms

D

Least genetic diversity

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The correct Answer is:
D
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ICSE-ECOSYSTEMS-COMPETITION CORNER (OBJECTIVE TYPE QUESTIONS)
  1. Evolution of different species in a given area starting from a point a...

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  2. Ecological efficiency is

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  3. Which one of the following is not used for construction of ecological ...

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  4. Which of the following is an example of man-made ecosystem?

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  5. Trophic levels in ecosystem is formed by

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  6. Identify the following food chain: Dead animal Blow fly maggots rarr C...

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  7. Study the four statements given below and select the two correct ones ...

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  8. The biomass available for consumption by the herbivores and the decomp...

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  9. Which of the following is false?

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  10. Transition zone between two ecosystems is

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  11. Which one of the following elements in plants is not remobilised?

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  12. Which one of the following statements for pyramid of energy is incorre...

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

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  14. Secondary succession takes place on/in

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

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

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  17. Most animals are tree dwellers in a

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

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  19. Which of the following is a characteristic fea- ture of cropland ecosy...

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  20. The term ecosystem was coined by

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