A group of pigs is reared indoors for eight weeks.
35% of the increase in body mass can be used as food.
The farmer wants to produce 1.68 tonnes of body mass that can be used as food.
What average increase in body mass is needed each week?
210 kg per week
4800 kg per week
600 kg per week
73.5 kg per week
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.