Grade 12 Term 3 test, paper set 2, in the format of the G.C.E. (A/L) Biology Paper II. Part A: answer all four structured essay questions (100 marks each). Part B: answer any four of the six essay questions (150 marks each); the last question is short notes. About 60% of the marks come from this term (plant stress responses; gas exchange, immunity, kidney and osmoregulation) and the rest revise Terms 1 and 2 (respiration, plant transport, classification). Each question has a marking guide showing where the marks go, and a plain-language "friend" explanation.