Which of the following reasons best describes why the number of jim crow laws increased in the south in the last decade of the 1800s?
a) more african americans moved into the south.
b) the fourteenth amendment was repealed.
c) the supreme court upheld state jim crow laws.
d) reconstruction finally ended.

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true. b) some other scientific experts read the papers and provide quality control by eliminating many mistakes. c) an editor reads the papers, to make sure that all the semicolons are in the correct places. d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog. e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.