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How has the avian lung adapted to the metabolic demands of flight?
Money Supply
The aggregate monetary value within an economy, including cash, coins, and all balances in checking and savings accounts, at a given moment.
Interest Rates
The cost of borrowing money or the reward for saving, typically expressed as a percentage of the principal.
Equilibrium GDP
The level of Gross Domestic Product where the total output of an economy equals the total demand.
Open Market
An economic system in which buying and selling of goods and services are conducted freely with minimal government intervention.
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