Answer:
What were the "cures" they had?
what were the early stages of the disease?
How was it spread?
--------------------------------------------Answer---------------------------------------------------------
(The first one and the third one seem to make the most sense.)
=)
Congress can check the branches. Congress makes sure that the power stays equal between each branch
Monroe doctrine
Monroe doctrine warns European countries to not colonize or puppet monarch
Invasive species of flora and fauna and communicable diseases were a byproduct of the Colombian Exchange