A gardener says that aphids are plant pathogens. Which statement about the gardener's idea is correct?
It is correct, because aphids cause a disease that spreads between plants
It is correct, because aphids are microorganisms that live in the phloem
It is not correct, because aphids are insect pests and not microorganisms
It is not correct, because aphids damage only the roots and not the leaves
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.