Question

The blood vessels that have vales in them ​

Answer 1

Answer:

Veins carry the blood back to the heart. They're similar to arteries but not as strong or as thick. Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.)

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Answer 2

Answer:

veins are the blood vessels that carry blood to heart

Explanation:

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