The domain system is a system that classifies things into three cellar life forms that are: Archean, Bacteria, and Eukaryota. It has changed due to the different types of things being introduced in the enviroment.
This is indicative of classical conditioning as studied by Pavlov. There is an unconditioned stimuli, in this case, Kendra’s nausea wherein nausea is not often associated with alcohol. The conditioned stimuli here is the smell of liquor which does not normally associate with nausea in other humans. In this case, Kendra’s nausea is now associated with the smell of liquor; yet another possible conditioned stimuli such as the sight of bottle was not associated.<span> </span>
Answer - Well the basics and shared ancestry can be DNA & RNA as carriers of genetic info and also a universal code last be not least metabolic pathways. :)
Thank you so much for the points luv ya