A strategy to improve the efficiency and credibility or HR involves implementing a(n) 1 HRIS system
2 affirmative action programme
3 range of motivation practices
4 strategic HR plan
​

No they’ve not done that

It might. it might because if you think about if they discovered if we came from (lets say something funny like aliens) and thy found cells that matched and they would have t do more research about it but would most probably change their theory.