Mass Extinctions Frequently Result in Adaptive Radiation Because They Lead

question 20

Multiple Choice

Mass extinctions frequently result in adaptive radiation because they lead to

• A) allopatric speciation.
• B) postzygotic barriers in other species.
• C) mechanical isolation in other species.
• D) ecological isolation in other species.

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Definitions:

Total Utility

The overall satisfaction or happiness received from consuming a certain amount of goods or services.

Marginal Utility

The extra pleasure or benefit obtained from consuming an additional unit of a product or service.

Total Utility

The total satisfaction or benefit that a consumer derives from consuming a certain quantity of goods and services.

Marginal Utility

The change in total satisfaction or pleasure derived from consuming one more unit of a good or service.