Examlex
In the long run:
Homeostasis
The process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival.
Primary Drives
Basic, innate urges that motivate behavior necessary for survival, such as hunger, thirst, sleep, and avoidance of pain.
Secondary Drives
Learned drives that are derived from primary drives or arising from learned associations with satisfying basic needs.
Need
A requirement of some material (such as food or water) that is essential for survival of the organism.
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