Question

families lived in homes made of wooden poles covered by grass mats.
caddo comanche both

families lived in portable homes made of poles covered by bison hides.
caddo comanche both

young men would embark upon a four-day quest to seek a vision connecting them with the spirits of the supernatural world.
caddo comanche both

tribes participated in the harvest of great corn celebration in september.
caddo comanche both

Explanation:

1. For "Families lived in homes made of wooden poles covered by grass mats": Caddo homes were often constructed with wooden poles and grass mats, so the answer is Caddo.
2. For "Families lived in portable homes made of poles covered by bison hides": Comanche were nomadic and used portable homes (tepees) made with bison hides, so the answer is Comanche.
3. For "Young men would embark upon a four - day quest to seek a vision connecting them with the spirits of the supernatural world": This was a practice of the Comanche, so the answer is Comanche.
4. For "Tribes participated in the Harvest of Great Corn celebration in September": The Caddo were agricultural and had corn - related celebrations, so the answer is Caddo.

Answer:

1. Families lived in homes made of wooden poles covered by grass mats: Caddo
2. Families lived in portable homes made of poles covered by bison hides: Comanche
3. Young men would embark upon a four - day quest to seek a vision connecting them with the spirits of the supernatural world: Comanche
4. Tribes participated in the Harvest of Great Corn celebration in September: Caddo