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The cenozoic era is best described as the era in which

A. a mass extinction event occurred.
B. mammals began to dominate the land
C. dinosaurs emerged
D. multicellular life diversified.

User Taknok
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2 Answers

3 votes
the answer to your question is b
User Chimpsarehungry
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5 votes
The answer is B when the mammals began to dominate the land.
hope this helps!
User Bomi
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