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Author Question: The air we breathe is made up of approximately _______ oxygen and 79 _______. Fill in the ... (Read 81 times)

awywial

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on: Jul 3, 2018
The air we breathe is made up of approximately _______ oxygen and 79 _______.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

________ bind(s) and transport(s) carbon dioxide and oxygen.
 
  A) Hemoglobin B) Hemocytes C) Hematocrit D) Hemoglobulin


akudia

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

21; nitrogen

Answer to Question 2

A


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