1.   A number of variations were seen in terms of population size, natural resource endowment, and current levels of development.

2.   Historical experiences and cultural assumptions differ and there are great variations in wealth, population size and ideology.

3.   Managers need information on population size and characteristics, vital statistics, finances, personnel and facilities.

4.   The lines on the graph show predicted population sizes using the best estimates of the parameter values.

5.   The towns were classified according to population size.

6.   Trade-based classifications Though clearly important, income and population size are not the only important characteristics of countries.

7.   When the population size reaches a peak, few organisms succeed in reproducing.