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Author Question: Primary sewage treatment involves A) aeration. B) settling. C) chemical treatment. D) Primary ... (Read 119 times)

P68T

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Primary sewage treatment involves
 
  A) aeration.
  B) settling.
  C) chemical treatment.
  D) Primary sewage treatment involves all of the above.

Question 2

The helical structure of certain proteins, such as wool, is part of the protein's
 
  A) primary structure.
  B) secondary structure.
  C) tertiary structure.
  D) quaternary structure.



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Dominic

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Answer to Question 1

B

Answer to Question 2

B




P68T

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Reply 2 on: Aug 27, 2018
Excellent


raenoj

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

 

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