Oceans can be seen as barriers to trade or as bridges between cultures. Explain how the Columbian exchange demonstrates one of these views and support this explanation with specific facts.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.

answer; ///biological psychologists;