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Author Question: When a person breathes out, which of the following normally takes place? A) O2 is exchanged for ... (Read 136 times)

Yolanda

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on: Jun 25, 2018
When a person breathes out, which of the following normally takes place?
 
  A) O2 is exchanged for CO2.
  B) The heart beats faster.
  C) CO2 is expelled.
  D) The pulse rate changes.

Question 2

An XY pair of chromosomes means that the fetus will be a:
 
  A) baby boy
  B) baby girl
  C) brown-haired child
  D) fraternal twin


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karmakat49

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Reply #1 on: Jun 25, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


Yolanda

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Reply 2 on: Jun 25, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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