Natural selection could lead to a change in the whole population if a particular trait provides a significant advantage to individuals carrying it, increasing their chances of survival and reproduction. Over time, this trait will become more common in the population through positive selection, leading to a change in the entire population.
For example, let's consider a population of beetles living in a forest with two different color morphs: green and brown. The green beetles are better camouflaged against the green leaves of the forest, making them less likely to be seen and eaten by predators. As a result, the green beetles have a higher survival rate and are more successful in reproducing and passing on their genes.
Over time, the green beetles will become more prevalent in the population as they have a better chance of survival and reproduction. Eventually, the population of beetles in the forest will be mostly green, showing how natural selection can lead to a change in the entire population through the spread of advantageous traits.
How could natural selection lead to a change in the whole population? Give me an example.
1 answer