Question

Explan how and why evolution by means of natural selection doesn’t produce perfectly adapted organisms and why it wouldn’t be advantageous for it to do so. Give an example to illustrate your explanation.

Answer 1

Natural selection cannot create novel, perfect species because it only selects on existing variations in a population.

it favors traits that are beneficial in a specific environment. Traits that are helpful in one environment might actually be harmful in another

example:A

population of mice has moved into a new area where the rocks are very dark. Due to natural genetic variation, some mice are black, while others are tan.

Tan mice are more visible to predatory birds than black mice. Thus, tan mice are eaten at higher frequency than black mice. Only the surviving mice reach reproductive age and leave offspring

black mice had a higher chance of leaving offspring than tan mice, the next generation contains a higher fraction of black mice than the previous generation.