Select the Following Statements That Are Related to Mass Extinctions

question 55

Multiple Choice

Select the following statements that are related to mass extinctions.

• A)A mass extinction occurs when extinctions sharply outpace the formation of new species.
• B)Periods of mass extinctions have occurred five times over the history of life on Earth.
• C)The most severe mass extinction occurred at the end of the Cretaceous period.
• D)The current level of species diversity is so high it is highly unlikely that another mass extinction could occur.
• E)During periods of mass extinction,dominant groups of organisms are protected and survive to repopulate.