In which of the following time periods were mammals the dominant type of life?
A) Cenozoic
B) Mesozoic
C) Paleozoic
D) Precambrian

Name: In which of the following time periods were mammals the dominant type of life? A) Cenozoic B) Mesozoic C) Paleozoic D) Precambrian
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Question

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Mammals became the dominant type of life during the Cenozoic era, following the mass extinction event at the end of the Mesozoic era that wiped out the dinosaurs.

In Which of the Following Time Periods Were Mammals the Dominant