Biology for IGCSE & O level - Transport In Animals (Section 1 - No. 33)
What is the main function of the septum in the heart?
To regulate the heart rate
To separate oxygenated and deoxygenated blood
To pump blood to the lungs
To receive blood from the veins
Explanation
The septum prevents the mixing of oxygenated and deoxygenated blood, ensuring efficient oxygen delivery.
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