Blood cells bring oxygen to cells and take carbon dioxide away

2 answers:

4 0

The blood brings oxygen to the body cells and takes away their carbon dioxide. The blood that travels back to the heart and lungs is dark red. It has picked up carbon dioxide from the body cells, and it has left most of its oxygen with the cells.

http://lsa.colorado.edu/essence/texts/lungs.html

Len [333]3 years ago

4 0

i believe the answer is red blood cells.

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