(HEL)In 300 words, identify and describe a central idea in Harriet Tubman: Conductor On the Underground Railroad, and trace its development over the course of the text.

The supreme court ruled that slaves could not sue because they could not read. they could not become lawyers. they lived in southern states. they were not considered citizens.

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by o a. region b. culture c. period d. theme

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