Of the following macromolecules, which is synthesized according to directions carried by DNA?
a. Lipids
b. Proteins
c. Carbohydrates
d. Nucleic acids
Answer: B
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Which of the following atmospheric layers is the thickest?
A. the layer bounded by 1001 hPa and 1010 hPa B. the layer bounded by 1 hPa and 10 hPa C. the layer bounded by 500 hPa and 550 hPa D. the layer bounded by 101 hPa and 110 hPa
During the summer along the coast, at which of the following times is a sea breeze usually strongest and best developed?
A. just before noon B. just after sunrise C. in the afternoon D. just before sunset
Transport costs that must be paid regardless of the distance involved are line-haul costs
Indicate whether the statement is true or false
In lakes, large numbers of decomposers are found in the ____.
A. limnetic zone B. benthic zone C. littoral zone D. profundal zone E. abyssal zone