Evolutionary biology is the study of

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)

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.