Answer:
what exactly do you want explained? I'd love to help! but I'm a bit confused :/ could you clarify?
That is correct- the heart pumps and the smooth muscles of arteries contract (also called constriction)
Answer:
Yes
Explanation:
When someone has high blood pressure: The heart has to pump harder. The arteries (blood vessels that carry the blood away from the heart) are under greater strain as they carry blood.
The most likely reason for death for someone born in 1900 was caused by Influenza and pneumonia. The most likely causes for death for some one born in 2006 is congenital malformations.