I believe it is idiopathic.
<span>Desirable traits become more common in populations because of the process of natural selection.</span>
Carbohydrates are sugar, and the closest answer on there is A. artifical sweetener.
The two fields of study that provide the core information that is used to classify organisms are:
<span>Morphology, a branch of biology that studies the form or structure of living beings.
Biochemistry, is responsible for studying from a chemical perspective the composition, structure and functions of living beings.</span>
