What are primary and secondary groups? what is an example of each?

What would a student most likely use if he or she wanted to consult a secondary source

Why did separate government develop in ancient greece?

Identify the constitutional principle that is common in both this excerpt and federalist no. 51. based on the constitutional principle identified in part (a), explain how the perspective in this excerpt compares with the perspective in federalist no. 51. explain how the constitutional principle identified in part (a) is reflected in the constitution, including two examples to explain how it affects the u.s. political system