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Cambridge IGCSE Biology practice

Paper 4 structured question: Conservation

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Conservation

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Paper 4Theory (Extended)4 marks

Fish populations can be managed by setting quotas and establishing protected areas to ensure sustainable fishing.

Description

Fish Population Management

Quotas limit the amount of fish caught. Protected areas restrict fishing in certain zones to protect habitats.

  1. a

    State one reason why quotas are set for fishing.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Explain how protected areas help conserve fish populations.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Conservation

Paper 4Theory (Extended)5 marks

Description

Fish Conservation Methods

Methods include education, closed seasons, protected areas, specific nets and mesh sizes, quotas, and monitoring.

  1. a

    Identify two methods used to conserve fish populations.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Explain how using specific mesh sizes in nets helps conserve fish populations.

    Aim for approximately 3 distinct marking points.

    [3]