Deciduous trees drop all of their leaves each autumn. Which is the best explanation of how losing its leaves defends a tree against disease?
The tree makes more antibacterial chemicals once its leaves fall
A layer of bark grows over the places where the leaves were attached
Leaves carrying pathogens are removed from the tree as they fall
Pathogens cannot survive the low temperatures of the winter months
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.