All the cells of an organism have the same DNA

Several billion years ago which gas was the least prevailant in the atmosphere

Blank is a rock with a find dark texture that makes up the oceanic crust

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.