5.3.1 Outline how population size is affected by natality, immigration, mortality and emigration

5.3.2 Draw and label a graph showing the sigmoid (S-shaped) population growth curve

5.3.3 Explain reasons for the exponential growth phase

5.3.3 Explain reasons for the transitional phase

5.3.3 Explain reasons for the plateau phase

5.3.4 List three factors that set limits to population increase