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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

Absence of soil organisms

B

Least genetic diversity

C

Absence of weeds

D

Ecological succession

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The correct Answer is:
B
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MOTION-ECOLOGY-EXERCISE -3
  1. The UN conference of Parties on climate change in the year 2012 was he...

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  2. Which of the following is the most important for animals and plants be...

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

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  4. Joint Forest Management Concept was introduced in India during

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  5. The term ecosystem was coined by:

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  6. When does the growth rate of a population following the logistic model...

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

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  8. A river with an inflow of domestic sewage rich in organic waste may re...

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  9. Gause's principle of competitive exclusion states that:

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  10. How many hot spots of biodiversity in the world have been identified t...

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

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  12. Which of the following is correct for r-selected species?

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  13. If '+' sign is assigned to benefited interaction '-' sign to detriment...

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  14. Which of the following is correctly matched?

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  15. Red List contains data or information on

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  16. Biochemical Oxygen Demand (BOD) may not be a good index for pollution ...

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  17. The highest DDT concentration in aquatic food chain shall occur in:

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  18. Asymptote in a logistic growth curve is obtained when

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  19. Which one of the following is related to Ex-situ conservation of threa...

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  20. Which ecosystem has the maximum biomass

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