Bacteria reproduce by binary fission, in which each cell divides into two daughter cells that are similar in size and shape. which type of reproduction occurs in this case?

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?