A 2003 Fossil Find of a Modern Human in Ethiopia

question 30

Multiple Choice

A 2003 fossil find of a modern human in Ethiopia fits recent genetic studies and supports the:

• A) multiregional continuity theory of human evolution.
• B) gene flow exchange theory.
• C) ""Out of Africa"" replacement theory.
• D) ""Out of Eurasia"" migration theory.

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Definitions:

Aggregate Demand Curve

A graphical representation that shows the total quantity of goods and services that all buyers in an economy (including consumers, businesses, and government) are willing and able to purchase at different price levels.

Nominal Income

The amount of income earned in current prices, without adjusting for inflation or deflation, representing the face value of wages, rents, interest, and profits.

Aggregate Supply Curve

A graphical representation showing the relationship between the overall price level and the total output produced by an economy.

Output Producers

Businesses or individuals that create goods or services for consumption.