What is the best way to pay a bank fee?

Wich of the following is not a receptor pair according to the opponent process theory

Requirements educate a student in a broad range areas and are required to complete a college major

How did the nature of immigration to the united states change in the 1990s? a.there were more female immigrants than male immigrants. b.there were more elderly people than children. c.more highly skilled immigrants migrated to the united states. d.immigrants moved farther inland than before. e.there were more immigrants from latin america than ever before.