Studies of Identical Twins Have

question 63

Multiple Choice

Studies of identical twins have

• A)proved conclusively the importance of biological factors in human development.
• B)proved conclusively the importance of environmental factors in human development.
• C)proved conclusively that human development is a result of the interaction between environmental and biological factors.
• D)been based on extremely small samples and should be viewed as preliminary analyses at best.

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Definitions:

North American Free Trade Agreement

An agreement among the United States, Canada, and Mexico designed to remove tariff barriers between the three countries, promoting trade.

Joint Output

The production of more than one product or service from a single production process or operation.

Quota

A quota is a government-imposed trade restriction that limits the number or monetary value of goods that can be imported or exported during a specified time period.

Imports

Goods or services bought from foreign countries for domestic use.