Natality is a factor affecting population density because it involves

Natality is a factor that affects population density, as it is a measure of the birth rate in a population. Natality refers to the number of young ones produced by a population over a given period of time. Therefore, the correct statement is that natality involves the number of all young ones produced in the population. This is because natality is a measure of the rate at which new individuals are added to the population, which is directly affected by the number of offspring produced by the population. An increase in natality will lead to an increase in population density, as there will be more individuals added to the population. The number of mature females in the population and the number of females in the population can also affect natality, as they are the ones who are capable of reproducing. However, the most direct measure of natality is the number of young ones produced in the population.