Evolutionary process whereby one species evolves into another without any splitting into multiple species Punctuated Equilibrium Model of the rate of evolution in which there are long periods of little change (stasis) in the species punctuated by short bursts of rapid change (usually due to an environmental change) Extinction. Rapid disappearance of a species.
17th Amendment to the U.S. Constitution: Direct Election of U.S. Senators. Americans did not directly vote for senators for the first 125 years of the Federal Government. The Constitution, as it was adopted in 1788, stated that senators would be elected by state legislatures.
Best Answer: Senators were elected by the state legislatures until the ratification of the 17th Amendment in 1913. The president and vice-president are elected by the Electoral College.Originally, between 1789 - 1804, the candidate with the highest number of electoral votes was elected president and the second highest became Vice-President. This was changed with the ratification of the 12th Amendment in 1804.eport Abuse. Senators were originally elected by the state legislatures. The president was elected in the same way he is today, by the electoral college. Although, the 11th amendment reformed the way the electoral college worked.