Respuesta :
The answer to your question is,
It's a sub-field of Biology. It is the process that produced the diversification of life on earth.
-Mabel <3
Evolutionary biology is the study of the adaptions and changes that occur and occurred in organisms and how these are related to the diversity of species we have to day.
Hope it helped,
BioTeacher101
(If you have any questions, feel free to ask them in the comments)