The second statement best explains the type of blood vessel and the function of these vessels' valves - <span>These are veins, which prevent the backflow of blood because the walls have little muscle to pump blood back to the heart.
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Veins are large blood vessels which carry blood back to the heart. <span>Veins have a system of valves to prevent back-flow.</span>
Reduce the amount of vegetables or eat raw nuts
not sure but has to be one of those
Answer:
its Infectious agent .
I hope its right if not an advance sorry .
Each person would get 165 cookies (495/3) (sorry if it's wrong lol)
