Overtime. The variation that gives an advantage is the answer becomes less common in the population can limit the number of selective pressures becomes more common in the population, or can limit the number of individual organisms.
Overtime, the process of natural selection can lead to certain traits or characteristics becoming more or less common in a population. This variation in frequency can have different effects on the overall population or on individual organisms.
1. When a particular trait or characteristic gives an advantage to an organism, it increases their chances of survival and reproduction. As a result, individuals possessing this advantageous trait are more likely to pass it on to the next generation. Over time, this can lead to the trait becoming more common in the population as it is selected for by nature. This type of selective pressure can increase the overall fitness and adaptation of the population to its environment.
2. On the other hand, if a trait becomes less advantageous or even detrimental to an organism's survival or reproductive success, it can decrease in frequency over time. This is because individuals with these traits are likely to have lower fitness and produce fewer offspring. As a result, the trait becomes less common in the population, and the selective pressure against it limits its presence.
3. In some cases, selective pressures can limit the number of individual organisms, particularly if the trait or characteristic is associated with negative outcomes. For example, if a genetic disorder reduces an organism's chances of survival or reproductive success, individuals with this disorder may have a lower fitness and produce fewer offspring. This can ultimately limit the number of individuals with that disorder in the population, as they are less likely to pass it on to future generations.
In summary, the process of natural selection and the variation in traits within a population can lead to changes in the frequency of certain traits. This variation can give advantages or disadvantages to individual organisms, and over time, can result in the traits becoming more common, less common, or even limited in the population.