Examlex
There is much greater variation within each of the traditional so-called races than between them.
Drive-reduction Approach
A theory in psychology that posits motivation arises from the need to reduce drives from physiological states of tension, such as hunger or thirst.
Motivation Approach
The study or practice of understanding the processes that activate, guide, and maintain goal-oriented behaviors.
Survival Value
The degree to which something (behavior, trait, or mechanism) enhances the chances of survival and reproduction in a given environment.
Human Expression
The process by which humans convey thoughts, feelings, and concepts through verbal or nonverbal means.
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