Which change is most likely to increase the variety of native woodland animals in an area?
replacing mixed woodland with a single crop
planting several species of native trees
removing dead wood from all woodland sites
replacing native trees with a single imported species
38 exam-style questions on Edexcel GCSE Biology 9.2 Energy transfer and biodiversity, covering 9.2.1 Energy transfer between trophic levels, 9.2.2 Efficiency of energy transfers, 9.2.3 Human interactions and biodiversity, 9.2.4 Benefits of maintaining biodiversity, and 9.2.5 Biological factors affecting food security. Each one has a worked solution and a mark scheme showing where the marks go.