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jolli1 [7]
3 years ago
5

96% of marine animal species became extinct in the permian mass extinction at the end of the paleozoic, 252 million years ago. w

hy does the blue curve show only a 50% drop at that time?
Biology
1 answer:
vekshin13 years ago
3 0
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!!!!!
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