CAIE IGCSE Biology EXTENDED 9.1.4 Advantages of a double circulation
CAIE IGCSE Biology EXTENDED 9.1.4 Advantages of a double circulation
Practise explaining why double circulation helps mammals supply oxygen and nutrients efficiently while keeping blood types separate.
How this is tested
- explain how separated oxygenated and deoxygenated blood supports tissue oxygen supply
- link double circulation to higher pressure flow and faster transport to the body