Answer:
In a presidential system, political and administrative powers are divided between the executive, legislative and judicial branches. In a parliamentary system, Parliament is sovereign and executive authority
Explanation:
Both Shang and Zhou governments were feudal states, meaning that there was a ruling dynasty which controlled the whole country, and then other classes which were below it, ending with peasants.
In Shang, women could rule. Zhou created their own currency.
Historians often rely on both primary and secondary sources when supporting an argument, since it's important to use secondary sources to put the argument in context, and primary sources in order to make an original point.
