Natural selection can lead to a change in the whole population when a certain trait or characteristic provides individuals with a survival advantage, allowing them to reproduce more successfully and pass on those advantageous traits to their offspring. Over time, this can result in a shift in the gene frequencies of the population as a whole.
For example, consider a population of insects where some individuals have developed a resistance to a certain pesticide due to a genetic mutation. When the pesticide is used to control the insect population, the resistant individuals are more likely to survive and reproduce, passing on their resistance gene to future generations. Over time, the population as a whole becomes increasingly resistant to the pesticide due to natural selection favoring individuals with the resistance trait. This is an example of how natural selection can lead to a change in the entire population.
How can natural selection lead to a change in the whole population? Give me an example.
1 answer