Which statement best describes a difference between presidential and parliamentary democracies?

In a parliamentary democracy, the executive and legislative branches are joined. In a presidential democracy, the two branches are separate. 

Just think, why was it effective? -it appeled to critics because it was written well, that made it noticeable to the public including the white population-it was also recognizable to the african americans because it was about their heritage.-it was powerful just keep finding more points and elaborate on them. message me if you need more