Nucleotide bases bonded to a sugar phosphate backbone make up
a) genes
b) the nucleus
c) dna
d) rna

How are gene and protein sequences used to classify organisms?

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

Use the distance formula to determine weather each pair of segments have the same length