A community garden contains many different species. Blackbirds feed on berries from hawthorn and rowan plants. They build nests in hawthorn or holly bushes. A disease causes the number of hawthorn plants to decrease.
Explain how the variety of species in the garden helps the blackbirds to survive after the decrease in hawthorn plants. Use information from the question.
84 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.