The Primary Crop of the First American Farmers in Peru

question 52

Short Answer

The primary crop of the first American farmers in Peru, Mexico, and the southwestern United States was ____________________.

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Definitions:

Control Group

In experimental research, it refers to the group of participants that does not receive the experimental treatment, used as a baseline to compare the effects of the treatment.

Experimental Group

In research, the group of subjects that receives the treatment or intervention being tested, as opposed to the control group which does not.

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to investigate its effect on the dependent variable.

Rate Of Productivity

A measure of the efficiency of production, often quantified as the amount of output per unit of input in a given time period.