Sentence arrange - put the steps of dna replication in order by writing a number in the space before
each statement.
two new molecules of dna are created.
dna polymerase attach the free-floating nucleotides to the exposed nitrogen bases.
helicase begins to break the hydrogen bonds between nitrogen bases.
cell starts into the mitosis phase of the cell cycle.
free floating nucleotides pair up with exposed nitrogen bases.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

mass and weight are closely related because mass affects the weight of an object experiencing the effects of gravity. weight is the measure of the force of gravity on an objects's mass, while mass is the measure of how much matter there is in an object.

copper and glass have high electrical conductivity