Showers were either showers or gas chambers, they just threw people in there and they didn't know if they were going to get water or deadly gas.
The people least likely to be executed were the healthy ones, they didn't care about women or kids, and they immediately killed the weak ones. But in all honesty it didn't really matter who you were. If you lived you were really just lucky.
True because syphilis really does enters its third stage.
The dating of artifacts is done by a three age system.
REM sleep's function are that it helps in forming new memories, stimulates the central nervous system, and restores brain chemistry to a normal balance