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CAIE IGCSE Biology 20.2.1 Defining Biodiversity

Practise defining biodiversity as the number of different species living in an area and distinguishing it from population size.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • define biodiversity as the number of different species that live in an area
  • distinguish species variety from the number of individuals in one population
  • infer reduced biodiversity when habitat clearance lowers the variety of species

20.2.1—Biodiversity as the number question 1

[Maximum number: 1]

Which term describes the number of different species living in an area?

A

biodiversity

B

conservation

C

ecosystem

D

population

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