How was the lifestyle of the tribes living on the grasslands of the Great Plains and the Southwest

None of the Plains tribes were originally Plains tribes - they all migrated into the Great Plains when horses became available. Living on the vast, empty grasslands was almost impossible without horses, which made following the herds a practicable lifestyle.

Previously most of the Plains tribes had lived in the northern woodlands or east of the Missouri river

Yes it does it sure does me later

D.the role of religion has steadily declined in recent years.pl give me  branliest