In your own words what was the role of human sacrifice in the major civilizations of Mesoamerica and South America?

human sacrifice was apart of their religious rituals, in order to satisfy or appease their gods,

The Aztecs, on the other hand, practiced human sacrifice on a much larger scale as an offering to Huitzilopochtli to restore the blood lost in his daily war

Most Mesoamerican and South American cultures practiced human sacrifice as part of their religious rituals, in order to satisfy or appease their gods ... The Aztecs, on the other hand, practiced human sacrifice on a much larger scale as an offering to Huitzilopochtli to restore the blood lost in his daily war.