Yes ur eight but there r certain products that can heurt the fetus
Answer:
Explanation:
1) Excitation brings about contraction.
2) Contraction leads to an increase in blood pressure.
3) Changes in blood pressure results in the opening and closing of the heart valves.
4) The opening and closing of heart valves then regulates the flow of blood and it's volume.
Answer:
you could have asked nicely
Explanation:
The answer from my knowledge would be B.
