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Biology 15 Online
OpenStudy (anonymous):

9. The Permian mass extinction, during which approximately 90% of all marine life became extinct, occurred during which geologic era? A. Precambrian Era B. Paleozoic Era C. Mesozoic Era D. Cenozoic Era

OpenStudy (abhisar):

Its B

OpenStudy (abhisar):

The mass extiction ended paleozoic era and after that mesozoic era started

OpenStudy (abhisar):

any doubt @it_meh_miranda ?

OpenStudy (anonymous):

no

OpenStudy (abhisar):

Good \(\color{green}{\huge\ddot\smile}\)

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