Select your answer:
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The Vascular System and Blood Flow › ViewWhich type of blood vessels have very thick muscular walls and carry blood away from the heart?
A. Arterioles
B. Capillaries
C. Arteries
D. Venules
Hospitality › View
How many portions of fruit and vegetables should we eat?
A. 5 a week
B. 5 a day
C. 10 a day
D. 2 a day