A tree growing in a garden is attacked by microorganisms and by animals that feed on it.
Describe the physical, chemical and mechanical defences that plants use, and explain what each type of defence protects the plant against.
58 exam-style questions on AQA GCSE Biology 3.3 Plant disease, covering 3.3.1 Detection and identification of plant diseases and 3.3.2 Plant defence responses. Each one has a worked solution and a mark scheme showing where the marks go.