Biology · Course of Circulation
In mammalian physiology, what does the term 'double circulation' mean?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Blood flows through two separate pairs of lungs
- 2Oxygenated and deoxygenated blood flow through the same vessels
- 3The heart has two chambers that pump blood simultaneously
- 4Blood passes through the heart twice during one complete cycle✓
Correct answer
Blood passes through the heart twice during one complete cycle
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