IBBiologyDPSLExam QuestionsUnity & DiversityConservation of Biodiversity

Conservation of Biodiversity (DP IB Biology: SL): Exam Questions

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Conservation of Biodiversity

11 mark

Which of the following is a correct explanation for biodiversity change?

  • Species extinctions occur due to anthropogenic extinction.

  • Scientists have changed the way species are classified.

  • Classification can be subjective.

  • There are more species alive today than have been alive in the past.

Choose your answer

21 mark

Which of the following describe(s) anthropogenic extinction?

I. North Island giant moas were hunted to extinction between 1200-1300.

II. An asteroid strike resulted in the extinction of most of the dinosaurs around 65 million years ago.

III. Caribbean monk seals were hunted to extinction to provide oil and food.

  • I and II only

  • I and III only

  • I, II and III

  • III only

Choose your answer

31 mark

Which of the following is an important factor in mixed dipterocarp ecosystem loss in Southeast Asia?

  • Introduction of non-native species.

  • Establishment of nature reserves.

  • Clear-cutting of trees to provide agricultural land.

  • Changes in atmospheric oxygen levels.

Choose your answer