Which information helps scientist determine the survival probability of a population, the existence of natural selection in the population, the feeding habits of an individual in the population the level of genetic variation in the population, the number of offspring of an individual in the population

The level of genetic variation in the population and the number of offspring of an individual in the population are factors that help scientists determine the survival probability of a population and the existence of natural selection in the population. The feeding habits of an individual in the population can also provide important insight into its survival and reproductive success.