Down Syndrome Is a Disorder of Varying Severity Caused by

question 27

Multiple Choice

Down syndrome is a disorder of varying severity caused by

• A) prenatal viral infections.
• B) parental neglect during infancy.
• C) an extra copy of chromosome 21.
• D) a lack of sufficient oxygen at the time of birth.

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Definitions:

World Price

The global market price of a good or service, influenced by international supply and demand.

Free Trade

The elimination of tariffs, quotas, and other trade barriers between countries to allow for the unrestricted exchange of goods and services.

Autarky Price

The price of goods in a closed economy that does not engage in international trade.

Domestic Supply

The total amount of goods and services produced within a country that is available for purchase.