The organisms below form a food chain in a vegetable garden.
Caterpillars feed on lettuce plants. Robins feed on caterpillars, and sparrowhawks feed on robins.
Name the organism in this food chain that makes its own food.
Give the process used by producers to make glucose.
Name the prey of the robin.
The number of caterpillars becomes much smaller. Suggest how the abundance of lettuce plants is likely to change. Explain your answer.
83 exam-style questions on AQA GCSE Biology 7.2 Organisation of an ecosystem, covering 7.2.1 Levels of organisation, 7.2.2 How materials are cycled, 7.2.3 Decomposition, and 7.2.4 Impact of environmental change (HT only). Each one has a worked solution and a mark scheme showing where the marks go.