IB ESS HL 3.1.11 (HL)—Reproductive isolation Question Bank

• Reproductive isolation can be achieved by geographical separation or, for populations living in the same area, by ecological or behavioural differences

• Include: two contemporary examples of speciation and their causes

• (Examples such as giraffes are unsuitable as they illustrate evolutionary change rather than speciation.) Separation of bonobos

• Consider: reasons for high rates of endemism on isolated islands