What term is used to describe immigrants as they face decisions and form preferences based on their old or new cultures?

Bi-cultural

Explanation: Bi-cultural  people are those people who persist ethics, culture and attitude of two different nations.This cultural factor helps in being connected with different culture,increment in the self esteem, increasing creativity etc.

These people also have the capability to maintain a good network with others. These qualities in the ethnic groups of bi-cultural people also lead to being successful.

it depends on which society you are referring to. many civilization performed rituals so the gods would with their growing season but the most well known is that of the aztecs. they would make sacrifices, usually animals, but sometimes humans as well.