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प्रश्न
Identify the reason because of which the walls of the arteries are thicker than those of veins.
विकल्प
Arteries carry more oxygen in them.
Arteries have to bear the pressure of blood.
Arteries have no valves in them like veins.
Arteries do not supply oxygen to the tissues.
MCQ
उत्तर
Arteries have to bear the pressure of blood.
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