Evolution theory, also known as the theory of evolution, is a well-known concept in the field of biology. It refers to the gradual process of change that occurs in living organisms over time. However, there are several synonyms for the term evolution theory that can be used to describe this process. These include the theory of natural selection, the theory of descent with modification, and the theory of common descent. Each of these synonyms emphasizes slightly different aspects of evolution, but they all refer to the same fundamental concept. Understanding the various ways to describe evolution theory can help improve communication within the field of biology and beyond.