Biology, asked by aj78658, 11 months ago

The blood vein have :
(1) More CO2
(3) Both
(2) More 02
(4) None

Answers

Answered by vaekFAN

2

Answer:

xxxxx

veins have more o2..

Answered by 28mahekdugad58

1

Answer:

The blood vein have :

Explanation:

(2) More 02

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