Which item is responsible for joining nucleotides to build a new strand of dna?
a. nitrogenous bases
b. dna polymerase
c. telomere
d. hydrogen-bond breaking proteins

What is one function of the embedded proteins

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

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?