Great Brittian
Roman
Holy Roman Empire
roman
The Moors.
Romans
a controlled group is like an idea but an experiment that is controlled cannot be changed.
An investigation in science that is controlled is an experiment. The group within the experiment that is controlled is the control group.
A controlled experiment
Controlled group is a group that is separated from the rest of the experiment. This is done in science.
control group and placebo group variable and controlled
The Boxers from the 1900s were one such group.
A fifth column is any group of people who undermine a larger group from within, usually in favor of an enemy group or nation.