Science
Feedback mechanisms.
Definition
Biological control systems that maintain homeostasis or amplify a response. Negative feedback loops reverse a change to restore balance, while positive feedback loops amplify a change until a process is complete.
Examples
Real-world.
- 1 Thermostat-like regulation of body temperature (negative feedback)
- 2 Blood clotting cascade amplifying platelet response at a wound (positive feedback)
- 3 Insulin and glucagon regulating blood sugar levels (negative feedback)