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Cambridge IGCSE Environmental Management practice

Paper 1 structured question: Ecosystems

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Attempt questionEcosystems revisionRevise the key idea

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Topic

Ecosystems

Exam-style question

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Paper 1Theory4 marks

Understanding ecosystem components and interactions

Description

Ecosystem Components

An ecosystem includes living organisms such as plants, herbivores, carnivores, and decomposers, as well as non-living factors like temperature, water, and light.

  1. a

    Define Define the term 'population' in an ecosystem.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Explain Explain the role of decomposers in an ecosystem.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 1 structured question: Ecosystems

Paper 1Theory5 marks

Diagram Description

Food Chain Example

Grass → Grasshopper → Frog → Snake

  1. a

    Describe Describe the flow of energy through this food chain.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Outline Outline the process of photosynthesis occurring in the grass.

    Aim for approximately 3 distinct marking points.

    [3]