Biology · Transportation in Animals and Plants
Which of the following statements is true about veins in the human circulatory system?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1They contain valves to prevent the backflow of blood.✓
- 2They possess very thick elastic walls.
- 3They carry blood away from the heart to all parts of the body.
- 4They generally carry oxygen-rich blood.
Correct answer
They contain valves to prevent the backflow of blood.
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