The assimilation efficiency (AE) of an animal is the percentage of the total mass of food eaten that is absorbed into the body after digestion, rather than being lost as faeces.
Plant-eating animals often have a lower assimilation efficiency than carnivores. Suggest why many herbivores cannot assimilate plant material very efficiently.
A rabbit eats 15.0 g of grass and produces 6.3 g of faeces. Calculate the assimilation efficiency (AE) of this rabbit. Show your working.
65 exam-style questions on Edexcel IGCSE Biology Nutrition. Each one has a worked solution and a mark scheme showing where the marks go.