Scientists recorded the percentage of plants in a salt-marsh population with an inherited characteristic that helps them survive in high-salinity soil.
The table shows the results.
| Generation | 0 | 5 | 10 | 15 |
|---|---|---|---|---|
| Plants with the characteristic (%) | 14 | 31 | 57 | 76 |
Explain the pattern in the data and suggest what may happen to the percentage of plants with the characteristic over the next generations if the soil remains highly saline.
122 exam-style questions on OCR GCSE Biology 5.2 Natural selection and evolution, covering 5.2.1 Genetic variation within a population, 5.2.2 Developments in classification systems, 5.2.3 How evolution occurs through natural selection, 5.2.4 Evolution as change over time, 5.2.5 Evidence for evolution, and 5.2.6 Darwin and Wallace. Each one has a worked solution and a mark scheme showing where the marks go.