Although the earth’s creatures differ widely, the code that controls many of their inherited characteristics is very stable and has served to maintain the distinction between basic kinds of creatures down through the ages.
Ehkki maakera elusorganismid on nii erinevad, on kood, mis määrab nende paljud pärilikud tunnused, väga stabiilne ja on läbi aegade aidanud hoida organismide põhiliste liikide erisust.