Discuss the differences and similarities between the house of representatives and the senate.

Some differences:

Senate has fewer members, 100, while the House over 400
House can impeach, the Senate try High officials
Senate has longer terms

Some similarities:

 
No limit on terms served
Need to be elected
New sessions start on the same day
in practical terms, the seats are split between the Democrats and the Republicans

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.