A botanist studies a shrub growing on a rocky hillside. The shrub has a waxy cuticle, leaf hairs, antibacterial chemicals and a poison in its leaves.
Which statement is correct?
The waxy cuticle kills bacteria after they enter the leaf
The leaf hairs make the shrub look unhealthy to herbivores
The poison makes herbivores less likely to eat the shrub again
The antibacterial chemicals form a physical barrier to bacteria
133 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.