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Which one of the following is a characte...

Which one of the following is a characteristic feature of cropland ecosystem?

A

Least genetic diversity

B

The absence of weeds

C

Ecological succession

D

The absence of soil organisms

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The correct Answer is:
A
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ARIHANT NEET-ECOSYSTEM-Exercises C Medical entrances gallery (collection of questions Asked in NEET & Various Medical Entrance Exams)
  1. Which one of the following is a characteristic feature of cropland eco...

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  2. The term ecosystem was coined by

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

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

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  5. Match the following Columns.

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  6. The amount of carbon dioxide required for the production of 3 gms of d...

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  7. According Robert Constanza, 50% of the total cost for ecosystem servic...

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  8. The breakdown of detritus into smaller particles by earthworm is a pro...

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  9. The pioneer species in xerarch and hydrach succession, are respectivel...

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  10. If 30 J of energy is trapped at producers level, than now much energy ...

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  11. Which of the following is a correct trend of succession in hydroseric ...

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  12. Secondary/Succession takes place on/in :

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

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

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

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  16. During ecological succession:

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  17. Flow of energy in an ecosystem is always

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  18. In a lake , phytoplankton grow in abundance in

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  19. Match the items in Column I with those in Column II and choose the cor...

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  20. Match the following Columns.

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