A farmer reared equal-sized groups of young rabbits for the same length of time. The groups were given the same type of food.
| Group | Movement | Air temperature in °C | Total mass of food eaten in kg | Total increase in body mass in kg |
|---|---|---|---|---|
| A | unrestricted | 14 | 50.0 | 10.0 |
| B | restricted | 20 | 60.0 | 18.0 |
Calculate the difference, in percentage points, between the percentages of food eaten that became new body mass in groups A and B.
A third group, C, was kept under the same conditions as group B, except that the air temperature was 14 °C.
Explain why the percentages for groups A and B were different. In your answer, predict how the percentage for group C would compare with the percentage for group B.
87 exam-style questions on AQA GCSE Biology 7.5 Food production, covering 7.5.1 Factors affecting food security, 7.5.2 Farming techniques, 7.5.3 Sustainable fisheries, and 7.5.4 Role of biotechnology. Each one has a worked solution and a mark scheme showing where the marks go.