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Exam-style practice

Food chains and food webs answer explanations

Review worked answers and explanations for Food chains and food webs. Aligned to Cambridge IGCSE Biology.

Answer explanations

Question 20 of 36

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Paper 3 structured question: Food chains and food webs

Paper 3Theory (Core)1 marks

Description

Introduction of a non-native species

A non-native fish species was introduced into a river. This species competes with native fish for food and habitat.

  1. a

    Identify one possible effect of introducing the non-native fish species on the native fish population.

    [1]
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