The heart has separate chambers mainly to prevent:
Question
The heart has separate chambers mainly to prevent:
Blood from clotting
Oxygen-rich blood from mixing with carbon dioxide-rich blood
Excess pressure build-up
Bacterial infection
Answer
Oxygen-rich blood from mixing with carbon dioxide-rich blood
Detailed Explanation
Since both oxygen and carbon dioxide must be transported, the heart's chambers keep oxygen-rich blood separate from blood carrying carbon dioxide. — Examisthan.com