Answer:
Control group; experimental group
Explanation:
Control group: In research, the term "control group" is described as a group through which specific comparisons are being made in research or experiment. The main purpose of the control group in an experiment whereby the effect of treatment is considered unknown and hence, the comparison between the experimental group and the control group are being utilized to measure the "effect of the treatment".
Experimental group: In research, the term "experimental group" determines the group of specific participants who are being exposed to an independent variable. Therefore, these participants are either exposed or receive the "treatment variable".
In the question above, the given statement represents the participants seeing "neutral faces" are in the control group and the participants seeing "smiling faces" are in the experimental group.
For number four, the Twelve Tables were a set of laws displayed in the forum in Rome, as for the rest, I don't have much insight. Hope this helps!
One reason why the Supreme Court ruled that Chaplains can offer prayers in Congress and in state legislatures is that: D) Prayers have been offered in those places since colonial times. One example of this was when Jacob Duche offered a prayer before the Continental Congress in 1774. Since Chaplains had been prayer in these places all this time the Supreme court felt that this was a bases for allowing them to continue to offer prayers in Congress and State Legislators.
Answer: Disenfranchisement after the Reconstruction era in the United States, especially in Southern states, was based on a series of laws, new constitutions, and practices in the South that were deliberately used to prevent black citizens from registering to vote and voting.
Explanation:
