You are not currently logged in. Please create an account or log in to view the full course. Classic View Biology A Level Edexcel Edexcel A level Biology A (9BN0) Topic 4: Biodiversity and Natural Resources Classic View Contents Evolution and Ecology Evolution and Ecology EVOLUTION AND ECOLOGY Charles Darwin and Alfred Russel Wallace Prof. Adam Hart, University of Gloucestershire EVOLUTION AND ECOLOGY Natural Selection Prof. Adam Hart, University of Gloucestershire EVOLUTION AND ECOLOGY Artificial Selection Prof. Adam Hart, University of Gloucestershire EVOLUTION AND ECOLOGY The Species Problem Prof. Adam Hart, University of Gloucestershire EVOLUTION AND ECOLOGY Speciation Prof. Adam Hart, University of Gloucestershire EVOLUTION AND ECOLOGY Ecology and Biodiversity Prof. Adam Hart, University of Gloucestershire EVOLUTION AND ECOLOGY The Biodiversity Crisis Prof. Adam Hart, University of Gloucestershire