Extinction events since life began

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Question: There were many extinction events since life began. Permian extinction is a very important event. Explain why was it so important?

 

 

 

 

 

 

 

 

 

 

Question: Mass extinctions can remove entire groups of organisms, seemingly at random-even groups that possess highly advantageous adaptations. How can this be?

Reference no: EM1384393

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