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Biology, 17.01.2020 22:31 montgomerykarloxc24x

High rates of species extinction caused by human activities have taken place at which of the following time in earth's history? i. at the end of the permian periodii. at the end of the cretaceous periodiii. during recent timesa) i onlyb) ii onlyc) iii onlyd) i and ii onlye) i, ii, and iii

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