Cells are the smallest unit of life in any organism
The Western and Eastern boundaries were not very strict defined: it was the desert, as the Egyptian civilization run along the Nile: there was no farming and no life away from the Nile.
To the North, Egypt was restricted by the Meditteranean.
To the south the border was moving, also by manner of wars. They were often set on the cataracts, as they're impassable by boat and easy to defend.
The main idea is how wives need to be a good wife, and a good mistress of the house.
