<span>The mirror is used to focus light through the opening in the in the stage of the microscope.</span>
The answer to this is older, but it's not a proven fact even though schools teach it as if it were. It is still just a theory if you think about it with how much the earth moves, areas of rock could be complete upside down and no one would know, it would be like history in reverse.
DNA → RNA → protein
Hope this helps
the correct arrangement of the above sentences is as follows: sentence 3- sentence 5- sentence 2- sentence 6- sentence 1- sentence 4.
option 2 seems appropriate for me!
