The plasma membrane of a human cell acts as a selective gatekeeper, controlling the entry of certain substances, while controlling the exit of certain substances as well.
Answer:
During the nineteenth century, American identity was undergoing a transformation. During the eighteenth century, much of the academic and artistic life of the nation was reduced to the East Coast and the Thirteen Colonies, and American identity, as something separate from English identity, had not been fully developed yet.
This changed during the nineteenth century. Authors such as Mark Twain and Walt Whitman wrote about what it meant to be an American, and their experience was one that did not resemble that of Europe. They focused on phenomena that was uniquely American, such as expansion and slavery. This allowed them to develop a unique American identity.
Explanation:
The correct answer for the question that is being presented above is this one: "C. revise the Articles of Confederation." The original purpose of the Constitutional Convention of 1787 was to revise the Articles of Confederation.
The correct answer for the question that is being presented above is this one: "C. VI." Under Article VI of the Constitution, the laws of Congress and all treaties are the law of the land.
Answer:
Tracking
Explanation:
This is a process of separating students by academic ability into groups for some subjects or all classes because students tends to fair better in classes that have students of same academic achievement.
