A population of hares has inherited variation in coat thickness. After a cold winter, scientists recorded the mean number of offspring that survived to reproduce for each coat type.
| Coat type | Mean number of offspring surviving to reproduce per hare |
|---|---|
| Thin | 1.2 |
| Thick | 2.8 |
Explain how the data support natural selection and how this theory helps explain adaptation.
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.