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6.1 Monitoring and maintaining the environment

6.1 Monitoring and maintaining the environment

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Question 6

The estimates for the population of koalas in a specific forestry region over several decades are given below:

  • Year 1990: 1.2 million
  • Year 2010: 480,000
  • Year 2020: 320,000

Calculate how many times more koalas there were in 1990 compared to in 2020.

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Markscheme

6.1 Monitoring and maintaining the environment Questions

  1. GCSE
  2. /Biology
  3. /6.1 Monitoring and maintaining the environment

25 exam-style questions on OCR GCSE Biology 6.1 Monitoring and maintaining the environment, covering 6.1.1 Field investigation of distribution and abundance, 6.1.2 Human interactions and biodiversity, 6.1.3 Maintaining biodiversity, and 6.1.4 Environmental change and distribution of organisms. Each one has a worked solution and a mark scheme showing where the marks go.

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