A diagram of the DNA double helix is provided. The DNA components highlighted in the diagram can best be described how? They are -

Sediment layers stop lateral spreading when: they encounter a barrier they encounter an opposing current they run out of additional sedimentary material

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of