Biology for IGCSE & O level - Transport In Animals (Section 4 - No. 49)
What is a major advantage of a double circulation system?
The blood pressure to the lungs is high.
The blood carries more carbon dioxide.
Oxygenated and deoxygenated blood are completely mixed.
The blood is kept at a high pressure to the body tissues.
Explanation
A double circulation system allows blood to the body to remain at a high pressure, providing a good supply of nutrients and oxygen.
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