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Biology 9 Online
OpenStudy (anonymous):

Which of the following has become today’s major cause of mass extinction? Adaptive radiation Human activities Addition of new species

OpenStudy (anonymous):

B

OpenStudy (anonymous):

you know what is mass extinction ???

OpenStudy (anonymous):

no

OpenStudy (anonymous):

An extinction event is a widespread and rapid decrease in the amount of life on earth is called mass extinction

OpenStudy (anonymous):

its not A or C its only humans who are causes this

OpenStudy (anonymous):

its it B

OpenStudy (anonymous):

yes

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