Which key features of the civilizations’ artifacts suggest an interdependence among cultures in the Americas?

The artifacts depict humans with the same feathered headdresses and human facial features, which suggests contact based on cultural similarities and rituals.
The artifacts depict the types of animals, pets, and environment the civilizations worshipped, which suggests contact with one another through trading species.
The objects were made out of the same materials, which suggests that the civilizations were in close contact with each other
.The artifacts depict similar human- and animal-like features, which suggests contact with one another and trading of religious ideas.

The artifacts depict similar agricultural practices and techniques, suggesting the exchange of knowledge and ideas in farming and food production.

The artifacts show evidence of advanced architectural and engineering techniques, indicating a possible exchange of knowledge in construction methods.
The artifacts display similar artistic styles and motifs, suggesting the sharing of artistic techniques and influences.
The artifacts contain similar pottery designs and techniques, indicating a possible exchange of pottery-making skills and traditions.