What Allowed Human and Animal Migration to Occur from Asia

question 37

Multiple Choice

What allowed human and animal migration to occur from Asia to North America?

• A)a warm spell called the Bölling-Alleröd period
• B)the Eemian interglacial period
• C)​retreat of continental glaciers
• D)​the Bering land bridge
• E)​melting of the polar ice caps

Analyze the impact of aggregate demand and supply shifts on equilibrium in the short run and long run.

Recognize the factors that influence long-run aggregate supply and demand, including technological changes and resource availability.

Understand the concept of potential output and how it is affected by economic factors.

Interpret the effects of beneficial and adverse supply shocks on the economy.

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Definitions:

Long-Run Equilibrium

A state in a market where all resources are optimally allocated and economic forces are balanced, with no tendency for change until external conditions change.

Perfect Competition

A market structure characterized by many sellers and buyers, homogeneous products, and free entry and exit, resulting in price takers.

Economic Profit

The difference between a business's total revenue and its total costs, including both explicit and implicit costs.

Long-Run Supply Curve

A graphical representation showing the relationship between price and quantity supplied over time, factoring in adjustments in factors of production.