Biology
Jaundice in human beings is the result of

Complete metabolism of biliverdin
Incomplete metabolism of biliverdin
Complete metabolism of bilirubin
Incomplete metabolism of bilirubin

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Biology
Which of the following is true about veins?

Veins have valves; arteries do not
Veins have a smaller diameter lumen than arteries
Veins are more muscular than arteries
Veins carry blood away from the heart, while arteries carry blood to the heart

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