Final answer:
Veins differ from arteries in their diameter, valves, and the direction of blood flow.
Step-by-step explanation:
Veins differ from arteries in several ways. They have a larger diameter, meaning they are wider than arteries. Veins also contain valves, which help prevent the backflow of blood. Additionally, veins return blood towards the heart, while arteries carry oxygenated blood away from the heart.
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