What is it called when someone lives as if they were a member of a different racial category than the one they were born into

The people of are overwhelmingly arab but are divided by religion.

What is the phrase describes the paleo-indians of prehistoric arkansas

"six months ago, several of molly's friends joined the trimtime fitness center. each of them participated in trimtime's weight-reduction and fitness regimen. all reported substantial weight reduction, and all are visibly slimmer. molly is convinced. she joins trimtime and enrolls in the program, hoping and expecting to see the same results. she is especially delighted to learn that trimtime had adjusted its program to make it even more effective in a shorter period of time." what is the feature in question/attribute of interest in this argument?