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The domains arose as barriers between evolved organisms.
Dependent Variable
In an experiment, the variable being tested and measured, expected to change due to the influence of the independent variable.
Control Group
In an experiment, this group does not receive the treatment under investigation and is used as a benchmark to measure how the other tested groups compare.
Independent Variable
In experimental research, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.
Dependent Variable
The variable in a study that is expected to change in response to manipulations of the independent variable, effectively measured to assess the effect.
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