Over 40 years the mean temperature in the UK rose and the northern edge of the range of one butterfly species moved 120 km north. Which conclusion is best supported by this information?
The rise in temperature has caused the butterfly to evolve into a new species
The rise in temperature proves that the butterfly moved north to find water
The rise in temperature shows the butterfly can no longer live in the south
The rise in temperature is correlated with the change in the butterfly range
40 exam-style questions on AQA GCSE Biology 7.2 Organisation of an ecosystem, covering 7.2.1 Levels of organisation, 7.2.2 How materials are cycled, 7.2.3 Decomposition, and 7.2.4 Impact of environmental change (HT only). Each one has a worked solution and a mark scheme showing where the marks go.