english: In fact, the natural world is organized hierarchically upwards, not downwards, but upwards, and we begin with a self-regulating, semi-autonomous unit called a cell.
non_english: Prírodný svet je hierarchicky  organizovaný smerom nahor, nie nadol, a preto začneme so samoregulačnou,  semiautonómnou jednotkou nazývanou bunka.