Question

what is missing from the diagram showing the relationship among human migration, ideas, and customs? new ideas and beliefs emerge from the different groups. the more powerful group puts their ideas into practice. groups agree to live together in a separation of ideas and beliefs. new customs and beliefs are adopted.

Explanation:

When groups migrate and interact with others having different beliefs, the process of cultural diffusion (sharing and adopting ideas/customs) occurs. The first option focuses on new ideas emerging, but the diagram's end is about belief systems spreading, so it's not about new creation. The second option about a powerful group imposing ideas isn't the typical result of migration - based interaction (more about exchange). The third option's "separation of ideas" contradicts the spread of belief systems. The fourth option, "New customs and beliefs are adopted", fits the flow: migration → interaction → adoption → spread of belief systems.

Answer:

D. New customs and beliefs are adopted.