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Author Question: _____ prevent backflow of blood in the circulatory system. a. Veins b. Valves c. Arteries d. ... (Read 78 times)

Evvie72

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on: Jul 3, 2018
_____ prevent backflow of blood in the circulatory system.
 
  a. Veins
  b. Valves
  c. Arteries
  d. Capillaries

Question 2

Press releases can be used for:
 
  a. announcing community education programs.
  b. issuing a safety notice.
  c. reporting on a major incident.
  d. All of the above


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chem1s3

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Reply #1 on: Jul 3, 2018
Answer to Question 1

B

Answer to Question 2

D


Evvie72

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Reply 2 on: Jul 3, 2018
Excellent

diana chang

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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