Many Argue That Species Can Recover When There Has Been

question 16

Multiple Choice

Many argue that species can recover when there has been a decline in their populations. Which of the following statements regarding mass extinctions is false?

• A) Recovery from mass extinctions occurs over tens of millions of years.
• B) Humans are responsible for all of the mass extinctions.
• C) Extinction rates are higher than ever before in Earth's history.
• D) In the case of the extinctions at the end of the Cretaceous Era, it was climatic and ecological conditions that lead to the death of many species.
• E) After every major extinction event in the Earth's history, the number of species has recovered and even surpassed pre-extinction levels.

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Definitions:

Producer Surplus

The difference between the amount that producers are willing and able to sell a good for and the actual amount they receive in the market.

Economic Rent

Income derived from the possession of a unique resource, exceeding that which is needed to keep the resource in its current employment.

Economic Profit

The profit from producing goods and services while considering both explicit and implicit costs, including opportunity costs.

Producer Surplus

The gap between the price that sellers are prepared to accept for a product and the real price it sells for in the market.