“...But the great security against a gradual concentration of the several powers in the same department, consists of giving those who administer each department, the necessary constitutional means, and personal motives, to resist encroachment of the others.” Source: James Madison, President of the United States (1809-1817), The Federalist Papers: No. 51, published February 8, 1788

In this excerpt, Madison is referring to which ONE of the following US government foundational principles?
Select one:

a.
Social contract

b.
Federalism

c.
Natural rights

d.
Separation of powers

Which of the following was discovered in the piedmont region of north carolina in 1799?

Whether or not a given study has the possibility of causing harm to participants:

Morei would really appreciate it. his eyes snapped open. a musty smell flooded his senses. the room was lowly lit, curved with smooth light gray walls. the floor was clear black tiled. he stood up, surprised to see no door, but only a trap door on the ceiling that blended in with the walls. the room was unfurnished, which struck him as strange. as you write and revise, ask yourself these questions: 1. do all of the sentences in this paragraph belong here? (unity) 2. are all of the sentences in this paragraph in the right place? (coherence-- a method of development) 3. are all of the sentences in this paragraph smoothly connected together into a whole paragraph? (coherence--use of transitional devices) once you've made certain that your paragraphs are both unified and coherent, edit your work for problems in grammar and mechanics before submitting it to your teacher.