Compare and contrast the cultures of Aksum, the Swahili Coast, and Great Zimbabwe in terms of their environmental, economic, religious, political, and social structures. ***one or two paragraphs please***

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