Within a bee colony, _______ serve the purpose of looking for food sources
a. Queens c. Scouts
b. Drones d. Larvae
C
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________ and ________ were the first scientists to publish the structure of a DNA molecule in 1953.
Fill in the blank(s) with the appropriate word(s).
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The ____ flip-flop is the most widely used flip-flop.
A. D B. JK C. RS D. Clocked RS
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The most popular way of heating using a hot water system is by the use of _________________________ on the outer walls of the area.
Fill in the blank(s) with the appropriate word(s).
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Essential variables identified by a welding procedure specification (WPS) are items that cannot be changed
without _____. a. supervisor approval b. site manager approval c. requalifying the welder d. requalifying the welding procedure
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