They were isolated for 2 basic reasons.One was the hilly geography of Greece,
this natural setting spawned several isolated communities.Then the second reason was because that these communities grew into city-states with the dominant community ruling the smaller ones
Here the answer will be the third option. The first one is not a good representative sample because the Republican National Convention members are not a good representation of Americans as a whole. The second one will only tell you what sophomores think/do/perceive about cheating, not high school students as a whole. <span>And the last one is also not a good representation of American family values, because not all Americans are Baptists. So the answer is the third one</span>
I believe the answer is: double blind procedures
double blind procedures refers to a form of study in which both participants and the researchers do not know which subjects are receiving the treatment. The purpose of double blind procedures is to prevent the bias held by the experimenters along with placebo effects.
Explanation:
Andrew Jackson was the first president democratic party