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CAIE IGCSE Biology 20.4.3 Organisms Become Endangered or Extinct Questions

Practise explaining how climate change, habitat destruction, hunting, overharvesting, pollution and introduced species threaten populations.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • distinguish threats such as habitat destruction and pollution from conservation actions such as monitoring or captive breeding
  • explain how habitat loss, hunting or overharvesting lowers population size and reproduction
  • apply pollution, climate change or introduced-species effects to a named organism

CAIE IGCSE Biology 20.4.3 Organisms Become Endangered or Extinct Questions question 1

[Maximum number: 1]

What are two reasons for organisms becoming endangered?

1 habitat destruction
2 monitoring
3 education
4 pollution
5 captive breeding programmes

A

1 and 4

B

1 and 5

C

2 and 3

D

3 and 4

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