If you do not do this, subsequent windows displaying the answer will not be visible. Answer Key 1. The number of survivors is plotted on a logarithmic scale. Most individuals die before they reach reproductive age. Most individuals are clumped and difficult to count.
Some individuals show a high fecundity.
The basic reproductive rate is 1. A stable population. Probability of death is constant with age. Mortality is concentrated at the end of the maximum life span. A stable-aged population.