Question

Which phrase best defines evolution by natural selection?

a. a sudden replacement of one population by another
b. changes in a species as it becomes more perfect
c. adaptation of a species to its environment
d. a process of change in species over time

Answer 1

Evolution by natural selection is a process where individuals with favorable genetic traits are more likely to survive and reproduce. This leads to major changes in species over time.

Step-by-step explanation:

Evolution is a change in the characteristics of living things over time, and this change occurs through a process called natural selection. Natural selection is a mechanism by which individuals with favorable genetic traits are more likely to survive and reproduce, passing on those traits to future generations. Over many generations, natural selection can lead to major changes in species. One example of natural selection is the adaptation of a species to its environment, such as the beak sizes of Darwin's finches changing in response to the availability of different-sized seeds.