The Next Few Questions Refer to the Following Evolutionary Tree

question 30

Multiple Choice

The next few questions refer to the following evolutionary tree, whose horizontal axis represents time (present time is on the far right) and whose vertical axis represents morphological change.

-Which of these five species originated earliest and appeared suddenly in the fossil record?

• A) V
• B) W
• C) X
• D) Y
• E) Z

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Definitions:

Exports

Goods or services produced in one country and sold to buyers in another, contributing to a nation's gross domestic product.

Balance of Trade Deficit

Occurs when a country's imports exceed its exports during a given time period, indicating that it is spending more on foreign trade than it is earning.

Net Exports

The value of a country's total exports minus its total imports. It is a measure used to calculate a country's aggregate expenditures.

Comparative Advantage

The ability of an individual or economy to produce goods or services at a lower opportunity cost than competitors, leading to more efficient trade and production.