Answer:
C
Explanation:
It makes a slower reaction
The aortic valve prevents backward flow of blood into the left ventricle.
Answer: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
Explanation:
Even though the symptoms have disappeared after having a
mini stroke, and the event seems to be unnoticed by friends and family, what
would likely to happen next is that another stroke could occur again and this
time, it won’t be the same as the mini stroke that she may have experienced,
for the mini stroke that she experienced serves as a warning.