Which would least likely be a cause of natural selection? adaptation, evolution, overpopulation, variation

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

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.

Involving transcription and translaton. explain the causes and effects of damage to the genetic code.