Biology
Which one among the following statements is correct ?

All veins carry oxygenated blood
Except the pulmonary artery, all other arteries carry oxygenated blood
Except the pulmonary vein, all other veins carry oxygenated blood
All arteries carry oxygenated blood

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Biology
Which statement best describes Arteries?

They have thin walls and transport blood away from the heart
They have thick walls and transport blood toward the heart
They have thin walls and transport blood toward the heart
They have thick walls and transport blood away from the heart

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