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Cambridge IGCSE Biology practice

Why is energy transfer between trophic levels often inefficient?

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Show answerFood chains and food webs revisionRevise the key idea

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MCQ

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Food chains and food webs

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Why is energy transfer between trophic levels often inefficient?.

  1. A.Because organisms use energy for life processes and some energy is lost as heat
  2. B.Because all energy is passed on to the next level
  3. C.Because energy is created at each trophic level
  4. D.Because energy is stored permanently in organisms

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Paper 4 structured question: Food chains and food webs

Paper 4Theory (Extended)4 marks

Description

Energy Transfer in Food Chains

In a food chain, energy is passed from producers to herbivores and then to carnivores. However, only a small fraction of energy is transferred from one trophic level to the next.

  1. a

    Explain why energy transfer between trophic levels is often inefficient.

    Aim for approximately 4 distinct marking points.

    [4]