The one that does not correctly match an immigrant group with its major pattern of settlement is :
Italian - Texas
Italian came into New Yok, not Texas, which marks the era of Mafia in United States
hope this helps
They were mist likely following food sources.
By popular sovereignty, basically the government would let the people choose if they wanted go be free or slave.
I believe the answer is: The tenure of membership
Tenure indicates the condition that must be made for members to maintain their membership within a certain group/organization.
Your membership would considered as unstable if you're failing or barely made the minimum conditions for that required by your group.