10th Class Science Our Environment Question Bank Our Enviornment and Management

  • question_answer
    Food chains generally do not exceed above 3, 4 trophic levels because ____.

    A) There are limited number of organisms in an ecosystem

    B) Larger food chains increase complications of food web

    C) A producer cannot be eaten by more than two herbivores

    D) Transfer of energy from one trophic level to other is associated with energy loss

    Correct Answer: D

    Solution :

    The quantum of available energy in a food chain successively gets decreased at each trophic level as a result of energy loss. This limits the number of trophic levels in a food chain.


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