Two small woods on a farm are connected by a long hedgerow. The farmer removes the hedgerow.
Which statement explains why biodiversity in the two woods may fall?
More light reaches the woods, so plants that grow in shade outcompete other plants.
Animals cannot move between the woods, so small isolated populations may die out.
Animals from the hedgerow move into the woods, so the woods hold more species.
Fewer hedgerow plants make oxygen, so animals in the woods cannot respire well.
109 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.