IB Biology D3.3 Definitions
This page contains our IB Biology definitions for D3.3. By learning each one of these definitions, you will fully cover the content for IB Biology 'Homeostasis'.
circadian rhythm
The daily rhythm of light from day and night
homeostasis
An organism's ability to maintain it's internal environment
jet lag
The disturbance of circadian rhythms due to travelling
negative feedback
The process whereby substances decrease each other's levels
positive feedback
The process whereby substances increase each other's levels
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