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AP Psychology
A biological need refers to a basic requirement for survival and well-being, such as food, water, or sleep. It is an essential necessity for maintaining physical health.
The body's tendency to maintain internal stability by regulating various physiological processes.
Primary Reinforcer: A stimulus that directly satisfies a biological need and naturally reinforces behavior.
The idea that motivated behavior arises from the need to reduce physiological drives (biological needs) and restore homeostasis.