Here are the answers to the given questions above. 1. The group that is considered as the v<span>ery powerful and the best educated in Aztec society is the priests. 2. The key belief or practice in the Aztec Religion is this: </span><span>Human sacrifice supplied a diet of blood for Aztec gods. The answer is the second option. 3. The one who </span>eventually invaded and conquered the Aztec Empire are the Spanish <span>soldiers and their native allies. Hope this helps.</span>