katelynserfass
katelynserfass katelynserfass
  • 12-12-2017
  • Biology
contestada

In what geological era did mammals expand on Earth?

A.)Cenozoic B.)Mesozoic C.)Paleozoic D.)Phanerozoic

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shellkl62
shellkl62 shellkl62
  • 12-12-2017
a i think because the web site i went said it was

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