When endoscopic instruments are passed to the surgeon and assistant, the working end of the instrument should be pointed ________ toward the cannula's or endoscope's opening

A. downward
B. upward

ANS: A

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List the signs and symptoms that are typical of a viral infection.

What will be an ideal response?

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In the cytoplasm of the cell, the _______________ are responsible for protein synthesis. 

Fill in the blank(s) with the appropriate word(s).

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