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Ecosystem Test ...

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  • Question 1
    1 / -0

    Choose the correct set. 

      Column I      Column II
     I. Gross primary productivity   
    		A. Total assimilation
     II. Secondary productivityB. Remains mobile and does not remain in situ 
     III. Transducers C. Green plants
     IV. Food webD. Interlocking pattern

  • Question 2
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    The possibilities of presence of coal or fossil fuels in a particular area can be guessed by the study of

  • Question 3
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    Match the two sets. 

    Column I    Column II
    IPioneers replacementAVegetation which modifies its own environment and thus, causing its own
    IIAutogenic successionBReplacement of existing community by external conditions 
    IIIAllogenic successionCEstablishment
    IVEcesisDPrimary colonisers

  • Question 4
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    Eltonian pyramids of numbers are upright in which one of the following ecosystems?

  • Question 5
    1 / -0

    Select the wrong statement.

  • Question 6
    1 / -0

    Match the columns.

    Column IColumn II
    I. Circulation of waterA. Dust water and gases above the earth
    II. Circulation of nitrogenB. Food chain
    III. Circulation of food materialC. Hyrdrological cycle
    IV. TroposphereD. Nitrogen cycle

  • Question 7
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    The pyramid of number in a grassland ecosystem is:

  • Question 8
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    Secondary succession can occur on

  • Question 9
    1 / -0

    Pick the correct statement.

  • Question 10
    1 / -0

    In the population having high growth rate, the age pyramid is shown by 

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