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Author Question: What is the purpose of valves in the circulatory system? A) Control the volume of blood moved in ... (Read 15 times)

CBme

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on: Jul 2, 2018
What is the purpose of valves in the circulatory system?
 
  A) Control the volume of blood moved in each pulse
  B) Prevent the backflow of blood in the vessels
  C) Support the bifurcation of the veins
  D) Allows for expansion and contraction of the veins

Question 2

MOST state statutes allow an emergency vehicle operator to do which of the following on emergency calls?
 
  A) Drive around lowered cross-arms at a railroad crossing
  B) Exceed posted speed limits if life and property are not endangered
  C) Be exempt from liability in the event of a serious collision
  D) Pass a stopped school bus when it has its red flashers on


BUTTHOL369

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Reply #1 on: Jul 2, 2018
Answer to Question 1

B

Answer to Question 2

B


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