Question

which blood vessel doesn't have valves 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.)

in short arterises is the answer

Answer 2

Answer:

Arteries.

Explanation:

Arteries don't have valves

Because this blood which is transported is from heart to other organs of body

As the blood moves in a certain pressure there is no requirement of vavles.