Which of the following is an example of natural selection?
A) birds that evolve a new beak shape in order to exploit a different food source
B) the extinction of the mammoths due to hunting by a new predator
C) fossils of trilobites that have the same morphology but are separated by millions of years
D) the mass extinction of the dinosaurs due to a meteorite's impact 65 million years ago

Question

Quizplus · Accepted Answer

Natural selection occurs when certain traits become more or less advantageous in a given environment, leading to changes in the frequency of those traits in a population over time. In this case, the evolution of a new beak shape in birds is a clear example of natural selection in action, as the birds are changing in response to a new food source, which is a selective pressure in their environment.

Which of the Following Is an Example of Natural Selection