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17. Mammals first appeared during the _______ era. A. Paleozoic B. Mesozoic C. Phanerozoic D. Cenozoic
Mammals first appeared during the Mesozoic era.
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Asked 2/10/2020 4:14:23 PM
Updated 12/4/2021 3:32:16 PM
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Mammals first appeared during the Mesozoic era.
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Added 12/4/2021 3:32:16 PM
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