(a)[2]
State two features of a fungus.
(b)[5]
Explain how the tree's reaction to infection causes these disease symptoms.
(c)[2]
Describe what is meant by the term vector in this context.
(d(i))[1]
Name the kind of reproduction shown in the diagram.
(d(ii))[3]
Suggest why this form of reproduction makes it difficult to control the spread of the disease caused by the fungus.