202k views
5 votes
6. As the blood travels through the lungs, it fills up with __________.

carbon dioxide
oxygen
white blood cells
lungs
nutrients
physical activity​

User Tim Allman
by
8.0k points

2 Answers

7 votes

It fills up with oxygen

User Akilan Manivannan
by
7.4k points
6 votes
The answer to your question would be oxygen
User Fredszaq
by
7.6k points
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