The framers included barriers and structures in the Constitution to protect minority rights. Which of the following is an example of this? A. segregation in schools
B. the Bill of Rights
C. separate but equal" doctrines
D. Jim Crow Laws

Ibelieve appendix i maybe wrong

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.