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Exam-style practice

Ecosystems answer explanations

Review worked answers and explanations for Ecosystems. Aligned to Cambridge IGCSE Environmental Management.

Answer explanations

Question 1 of 2

Review the answer support, then move sideways through the set.

Paper 1 structured question: Ecosystems

Paper 1Theory4 marks

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.

    [1]
  2. b

    Explain Explain the role of decomposers in an ecosystem.

    [3]