Which of these is true of Mesoamerica?
A
A single empire ruled for thousands of years.
B
Three major empires ruled.
C
Slavery was never legal
D
There was no farming.

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