Timeline of Life on Earth

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Questions and Answers

Which period of the Paleozoic Era saw the most dramatic increase in the diversity of marine life?

  • Ordovician
  • Cambrian (correct)
  • Devonian
  • Carboniferous

Which group of terrestrial organisms experienced a significant adaptive radiation during the Mesozoic Era?

  • Mammals
  • Arthropods
  • Amphibians
  • Reptiles (correct)

Which major event at the end of the Permian period led to the mass extinction of many marine and terrestrial species?

  • Volcanic activity (correct)
  • Meteor impact
  • Glaciation
  • Plate tectonic shifts

Which major group of terrestrial organisms experienced a significant adaptive radiation during the Cenozoic Era?

<p>Mammals (A)</p> Signup and view all the answers

Which geological period is associated with the Pleistocene events, including the Ice Ages and the extinction of many large mammals?

<p>Cenozoic (B)</p> Signup and view all the answers

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