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:

Environmental Influences

Factors external to the individual, such as climate, culture, and social conditions, that can affect development and behavior.

Cohort Differences

Variations in characteristics, experiences, or development among groups of individuals who are defined by some shared temporal experience or common life experience.

Industry

The sector of the economy concerned with the production, processing, and distribution of goods and services.