The requirement of makes an organism's cell make-up different from the cell make-up of an inanimate object.
energy
interdependence
light

europe would not recognize the confederacy as an independent nation.

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.