How were the goals of austria and russia similar?

After the attacks of september 11, 2001, the united states demanded that

Hich explains why the constitution gave congress the power to create a system of federal courts? the constitution wanted congress to share power with the judicial branch. the constitution anticipated the need for courts lower than the supreme court. the constitution wanted congress to share power with the appellate courts. the constitution anticipated the need for courts equal to the supreme court.

Why do many scientists suppose the land bridge theory of migration?