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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Food chains and food webs

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Attempt questionFood chains and food webs revisionRevise the key idea

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2

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Food chains and food webs

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Paper 3Theory (Core)2 marks

Understanding the flow of energy in ecosystems.

Description

Food Chain Example

In a simple food chain, grass is eaten by rabbits, and rabbits are eaten by foxes.

  1. a

    Analyse Describe the flow of energy in this food chain.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Food chains and food webs

Paper 3Theory (Core)3 marks

Description

Impact of Removing a Species

Consider a food chain: Grass → Rabbit → Fox. What happens if the rabbit is removed?

  1. a

    Discuss What are the potential effects of removing the rabbit from this food chain?

    Aim for approximately 3 distinct marking points.

    [3]