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.
When the Spanish arrived in Mexico, the Aztecs had not yet developed iron or bronze metals. Their tools were made from bone, stone, and obsidian. They also did not use beasts of burden or the wheel.However, despite their lack of these basic technologies, the Aztecs had a fairly developed society. They also had some writing and technology of their own.t was sacred to the Aztecs and was very important as it divided time equally among the various gods and kept the universe in balance. The calendar had 260 days. Each day was represented by a combination of 21 day signs and thirteen day signs. The other calendar was used to track time.