Key term for OCR GCSE Biology A, used in Homeostasis.
The maintenance of a constant internal environment despite external changes.
Homeostasis appears in OCR GCSE Biology A revision content for Organism level systems, especially Homeostasis and Effect of ADH.
Organism level systems
Homeostasis • Effect of ADH
Organism level systems
Homeostasis • Osmotic changes
Organism level systems
Homeostasis • Diabetes
Organism level systems
Homeostasis • Glucagon and blood sugar
Organism level systems
Homeostasis • Insulin and blood sugar
Organism level systems
Homeostasis • Control of body temperature
Organism level systems
Homeostasis • Response to challenges
Organism level systems
Homeostasis • Importance of homeostasis
Organism level systems
The endocrine system • Thyroxine and adrenaline
Organism level systems
The endocrine system • Hormonal coordination
Organism level systems
The nervous system • The brain
Scaling up
The challenges of size • Red blood cells and plasma
Scaling up
The challenges of size • Substances transported
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