RNA differs from DNA in that RNA:

A. Contains thymine instead of uracil.
B. Contains an H group instead of an OH group at its number 2 carbon.
C. Is normally single-stranded.
D. Is used to carry the genetic information of most viruses.

B

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At which of these points is water heaviest?

A. At sea level B. Below sea level C. Near its boiling point D. Near its freezing point

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The direct digital image system converts traditional film x-rays to digital images

a. True b. False Indicate whether the statement is true or false

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