A farmer compared two systems for rearing rabbits for meat. Rabbits in both systems were the same age and were given the same mass of food.
| System | Housing | Mean increase in mass per rabbit in 12 weeks in kg | Rabbits observed carrying out natural behaviours in % | Rabbits developing health problems in % |
|---|---|---|---|---|
| A | Small heated pens | 2.3 | 21 | 12 |
| B | Large outdoor enclosures | 1.8 | 74 | 5 |
Evaluate whether the farmer should use System A rather than System 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.