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July 1, 2015

Homework Help: Biology!!!!

Posted by Marrion on Monday, October 12, 2009 at 10:15pm.

Which blood vessel contains blood that has high oxygen concentration, low carbon dioxide concentration, and high pressure?

1. aorta
2. pulmonary artery
3. pulmonary vein
4. vena cava

I wrote the answer as 3, but is wrong. Which one is the correct answer?

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