How did the theory of evolution by natural selection change modern biology?
It explained adaptations through deliberate changes and inherited effort.
It explained adaptations through differential survival and inherited variation.
It explained adaptations through equal survival and identical offspring.
It explained adaptations through random survival and acquired exercise.
85 exam-style questions on Edexcel GCSE Biology 4.1 Evolution and natural selection, covering 4.1.1 Work of Darwin and Wallace and 4.1.2 Resistant organisms and evolution. Each one has a worked solution and a mark scheme showing where the marks go.