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Cambridge IGCSE Biology

20.4Conservation

Conservation in Cambridge IGCSE Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic21 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 20.4.1Describe a sustainable resource and state that forests and fish stocks can be conserved and managed sustainably.
  2. 20.4.2Explain why organisms become endangered or extinct and describe how endangered species can be conserved.
  3. 20.4.3Supplement: explain how forests and fish stocks can be conserved and describe the reasons for conservation programmes.
  4. 20.4.4Supplement: describe the use of artificial insemination and IVF in captive breeding, and explain the risks to a species when a small population loses genetic variation.

Lessons

  • Conservation and sustainable resources

    20 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Conservation: sample question

1 mark

(Supplement) True or false: using fishing nets with a larger mesh size helps to conserve fish stocks.

Is the statement true or false?

Turn Conservation into a strength.

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