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96% of marine animal species became extinct in the permian mass extinction at the end of the paleozoic, 252 million years ago. why does the blue curve show only a 50% drop at that time?
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Aug 12, 2019
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96% of marine animal species became extinct in the permian mass extinction at the end of the paleozoic, 252 million years ago. why does the blue curve show only a 50% drop at that time?
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AziMez
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Families typically contain may species, so the percentages of families that became extinct is lower than the percentage of species that became extinct.
Hope that helps!!!!!
Underblob
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Aug 18, 2019
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