The answer is, 43 km/hr . Speed is,

So we will divide the given distance to the given time, so :
Hey, I believe your answer would be D. Only DNA contains the sugar deoxyribose. This is the answer, because RNA contains sugar ribose, not sugar deoxyribose.
Prokaryotic cells have a simpler structure than eukaryotic cells.
Evidence shows that eukaryotic cells evolved from prokaryotic cells.
Some might argue that prokaryotic cells are less important than
eukaryotic cells. But a case can be made that prokaryotic cells are just
as important to life on Earth today as eukaryotic cells. Which do you
think is true? Are prokaryotic cells important to life on Earth? Analyze
the similarities and differences of these cell types to explain your
position.
why this is in my portfolio
I chose this because I
think I wrote my argument well and because if I put this in my portfolio
more people will know how awesome prokaryotes are
my answer
Answer - C
The nitrogenous base pairs on the structure of the DNA resemble the rungs of the ladder. Alternating deoxyribose sugars and the phosphate groups form the rails of the ladder.