How Do Mass Extinctions Differ from Background Extinctions

question 27

Multiple Choice

How do mass extinctions differ from background extinctions?

• A) It is now recognized that mass extinctions but not background extinctions are generally caused by asteroid impacts.
• B) Mass extinctions involve a relatively rapid extinction of a large proportion of organisms that were alive at that time.
• C) Mass extinctions account for most species that have gone extinct in the history of life on Earth.

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Definitions:

Supermajority Requirement

A rule that requires a higher than simple majority vote, often used in legislative bodies or for corporate decisions.

Revised Act

Legislation that has been updated or amended to incorporate new information, correct errors, or reflect changes in policy.

Management Structure

The hierarchy of authority and responsibility in an organization that determines how decisions are made and how tasks are allocated and executed.

Closely Held Corporation

A corporation with a limited number of shareholders, often characterized by close family or associate relationships.