Dna and rna differ in all but one of the following ways.
a) dna is double-stranded, while rna is single stranded.
b) rna uses the sugar ribose in its backbone, while dna uses deoxyribose.
c) dna contains the base uracil, while rna contains the base thymine instead.
d) dna is found in chromosomes in the nucleus, while rna can move around the cell.

the correct answer is C) DNA contains the base uracil, while RNA contains the base thymine instead

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.