Refer to the Table

question 55

Multiple Choice

Refer to the table.
The table shows the number of species of a group of mammals present in the tropics, the subtropics, and the temperate zone over the last fifty million years.
-Which specific hypothesis is best supported by the data in the table?

• A) Speciation rates are greater in the tropics because of the abundance of land area there.
• B) Extinction rates are lower in the tropics because of the abundance of land area there.
• C) The evolutionary time available for diversification in the tropics has been more limited than elsewhere, since the last major disturbance occurred there more recently than elsewhere.
• D) The evolutionary time available for diversification in the tropics has been greater than elsewhere, since the last major disturbance occurred there less recently than elsewhere.

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Definitions:

Economic Loss

A situation where total costs exceed total revenues, leading to a negative profit.

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A monopoly that operates under government regulation aiming to control pricing, supply, and standards of service to prevent exploitation of monopoly power.

Competitiveness of Markets

The degree of competition within a market, influencing pricing, product quality, and innovation.