Stem cells are unique because they have not yet completed the process and become a distinct type of cell.

All ova contain sex chromosomes corresponding to: x y xx xy

Which to produce involved from a symbiotic relationship of organisms which resulted in eukaryotic organisms contain chloroplast

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?