Charles Darwin collected evidence during a five-year voyage on the ship HMS Beagle. Alfred Russel Wallace collected evidence while working in South-East Asia.
In 1858, Wallace sent Darwin a letter describing ideas that were very similar to Darwin's own ideas. Their ideas were presented together to other scientists in the same year.
Give one type of evidence that Darwin collected during his voyage.
Explain why it was important that Wallace reached the same conclusion as Darwin on his own.
In 1859, Darwin published his ideas in a book called On the Origin of Species. Suggest why publishing his ideas in a book was important.
Give two ways in which the theory of evolution by natural selection has had an impact on modern biology.
44 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.