Modern ultrastructural, biochemical, and genetic evidence has rendered the term protozoan highly problematic. For example, protozoan historically referred to a protist that has animal-like traits, such as the ability to move through water as though âswimmingâ like an animal.
Sacrifice. An image of an Aztec obsidian sacrificial knife. While these web pages have concentrated on the religion and world view of the Aztecs, one aspect of their culture and a vital element of important rituals cannot be ignored: death sacrifice.n image of an Aztec obsidian sacrificial knife. While these web pages have concentrated on the religion and world view of the Aztecs, one aspect of their culture and a vital element of important rituals cannot be ignored: death sacrifice.
The practice of human sacrifice was widespread in the Mesoamerican and in the South American cultures during the Inca Empire. Like all other known pre-Columbian civilizations of Mesoamerica, the Aztecs practiced human sacrifice. The extant sources describe how the Aztecs sacrificed human victims on each of their eighteen festivities, one festivity for each of their 20-day months.