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Preschoolers develop the capacity to manipulate symbols, letting one object stand as arepresentation for another.
Positive Emotions
Feelings that are perceived as pleasant or desirable, such as joy, love, and gratitude, which can contribute to one's overall well-being and happiness.
Optimal Level
The most advantageous or effective state or degree of something for a specific purpose or outcome.
Fight-or-flight Response
A physiological reaction to perceived harm or threat, mobilizing the body for fighting or fleeing.
Social Evolution
The gradual development and progression of societies and cultures over time through mechanisms such as adaptation, selection, and innovation.
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