Answer the following question given this paragraph: 

The term evolution describes the changes that occur in populations of living organisms over time. Describing these changes does not address the origin of life. The two are commonly and mistakenly confused. Biological evolution likewise says nothing about cosmology, the Big Bang, or where the universe, galaxy, solar system, or Earth came from.


Q: What process refers to the changes that occur in populations of living organisms over time?


A:
evolution