How does an oligarchy differ from a representative democracy? (the choices are in the photo)

When was the us construction written

1. what was william harvey's discovery about the human body? @ two types of blood flowed through the veins and arteries. b four fluids existed in the body: blood, yellow bile, black bile, and phlegm. © the same blood flowed through the veins and arteries. d ancient ideas of human anatomy and bodily functions were wrong. done

The five extra days added to the egyptian calendar were for?