Population growth models can be used to describe changes occurring in a population and help predict future changes. This model is used to predict the population of an organism at a given time. Because of this model, future changes in the population can be predicted giving into consideration certain factors such as reproduction rates of the organism.
Population growth models cannot decide what will occur in the future. Future changes depend on the factors affecting the population size. It does not determine actual occurrences or establish what happened in the past. Past and present growth of the population cannot be determined by this model. It can only be used to predict future changes of the population.
Answer - Option 3 - help predict future changes