Cloning the creation of an organism that is an exact copy of another occurs naturally in nature (identical twins) may be used for cloning stem cells, reviving endangered or extinct species, reproducing an exact copy of an organism. How is a clone made? An early stage embryo is split into cells before those cells have differentiated, the cells are then grown separately, and develop into identical embryos and can be implanted into surrogate mothers. Cloning

Cellular Respiration C6H12O6 + 6O2  6CO2 + 6H2O process that releases energy by breaking down glucose when oxygen is present Occurs in the mitochondria of a cell. Formula: C6H12O6 + 6O2  6CO2 + 6H2O