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What is true about veins?



A. Contain blue blood
B. Have valves the prevent back flow
C. Are under less pressure than arteries
D. All of the above

This question is part of Grade 10 Science Exam (Practice)
Asked by Penelopeqs, Last updated: Apr 03, 2020

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2 Answers

ewer

Ewer

Answered Jun 22, 2017

Blood is not blue. The viens appear to be blue you idiot

 

John Smith

John Smith

Answered Jun 23, 2017

All of the above
 

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