A species of butterfly is now found 200 km further north than it was 50 years ago.
Which is the best explanation for this change?
Temperatures have increased, so conditions further north are now suitable for the butterfly
The butterflies have adapted to colder temperatures, so they can now survive further north
Temperatures have increased, so the butterflies have decided to fly to cooler places
Rainfall has decreased in the south, so the butterflies moved north to find more flowers
49 exam-style questions on AQA GCSE Biology 7.3 Biodiversity and the effect of human interaction on ecosystems, covering 7.3.1 Biodiversity, 7.3.2 Waste management, 7.3.3 Land use, 7.3.4 Deforestation, 7.3.5 Global warming, and 7.3.6 Maintaining biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.