Which of the following could be a nucleotide of rna?
a. deoxyribose + phosphate group + thymine
b. deoxyribose + phosphate group + uracil
c. ribose + phosphate group + thymine
d. ribose + phosphate group + uracil

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

The more rapidly sedimentation occurs, the more likely it is that the remains will successfully form a fossil. as sedimentation continues, what happens to the amount of weight settling onto the organism? stays the same increases decreases cuts in half