Examlex
Swimming is metabolically less expensive as a mode of locomotion than flying or walking.
Nature
The phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth.
Nurture
The influence of external factors after conception, e.g., the product of exposure, experience, and learning on an individual.
Instinct
An ingrained behavior observed in animals that consistently occurs in reaction to designated stimuli.
Drive-Reduction Theory
A psychological theory suggesting that motivation arises from biological needs driving an individual to act in ways that reduce drives and achieve homeostasis.
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