SSC Ecology And Environment Sample Paper NCERT Sample Paper-4

  • question_answer
    With reference to forest ecosystems, consider the following statements:
    1. The number pyramid is neither inverted nor upward.
    2. The biomass pyramid is inverted. Which of the statements given above is/are correct?

    A)  1 only  

    B)  2 only

    C)  Both 1 and 2    

    D)  Neither 1 dot 2

    Correct Answer: A

    Solution :

    [a] Forest ecosystem has a partly upright pyramid of number. This is because the number of producers are lesser in number and support a greater number of herbivores and which in turn support a fewer number of carnivores. Biomass pyramid is upright in a forest ecosystem because a larger net biomass of producers support a smaller weight of consumers.

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