(a(i))[2]
State two factors that make cancer more likely to develop.
(a(ii))[1]
State why lung cancer is classed as a non-infectious disease.
(b)[4]
Use the data in Fig. 4.1 to compare how effective the two drugs are at treating the tumours.
(c)[3]
Vinblastine prevents the spindle apparatus from forming during mitosis. Explain how vinblastine produces its anti-cancer effect.