South americas ethinc diversty best reflects?

The principle that the geoglical processes that we see today have occurred through out earths history is called

What trade did europeans want most before the 1800s ivory wood slaves gold

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.