the jewish prisoners were separated by gender and age, and those seen unfit to work were sent directly to the gas chambers (metal chambers that filled with poisonous gases disguised as showers most often). Those who could were sent to labor camps where they would work doing extremely strenuous and backbreaking work with little or no rest or food each day. when someone could no longer work or was deemed useless they were killed. the jewish people were stuffed into small barracks with wood bunk beds where way too many people were shoved inside uncomfortably spreading many diseases easily, and things like lice (which is why the nazis shaved the heads of all the prisoners). some camps were strictly for killing while others were for working until it was time to die. they were awful, miserable places that are responsible for some 6 million deaths of just Jews alone.