All chemicals in commercial use were screened for toxicity before they were accepted for use.
Answer the following statement true (T) or false (F)
False
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RNA and DNA differ in all of the following except:
A. RNA uses a different sugar from DNA. B. RNA uses four nitrogenous bases not found in DNA. C. RNA uses the nitrogenous base uracil (U) in place of thymine (T). D. RNA is single-stranded rather than double-stranded.
Streamlines on a weather map depict:a
water temperature. b. pressure. c. wind flow. d. dew point. e. ocean currents.
Nutrients in coral reefs are ____.?
A) ?extremely limited, which is why productivity is lower than the deep ocean B) ?so plentiful that there is no limit to phytoplankton growth C) ?largely trapped below the pycnocline D) ?recycled efficiently because the water is shallow
When supercooled raindrops freeze on contact with solid objects, ________ forms
Fill in the blank(s) with correct word