Evolution is the process by which living beings change over generations. These changes happen slowly and can lead to new traits or even entirely new species. Evolution explains the diversity of life on Earth and helps us understand how all living things are related through common ancestors.

Classification connects to evolution because it groups organisms based on these evolutionary relationships, helping us trace how species have changed and developed over time. Classification shows changes by grouping related species, helping us see how they are linked and how they have branched out from one another in the evolutionary tree of life. This helps us understand the diversity of life and its history.