Evolution of Mammals and Biogeography Quiz
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Questions and Answers

When did the first mammals appear?

  • Devonian period (~360 mya)
  • Cretaceous period (~65 mya)
  • Triassic period (~220 mya) (correct)
  • Jurassic period (~150 mya)

    • Which group of mammals were almost certainly the first to appear?

  • Placentals
  • Monotremes (correct)
  • Marsupials
  • Rodents

    • What does the cladistic diagram in Figure 10.10 show?

  • The different biogeographic regions for mammals
  • The global distribution of modern mammals
  • The geological time scale of mammalian evolution
  • The relationships between mammalian clades and their ancestors (correct)

    • At what age does the vertical wavy line on the timescale in Figure 10.10 indicate?

    <p>~65 mya</p> Signup and view all the answers

    What does the timetree of mammalian evolution in Figure 10.10 illustrate?

    <p>The relationship between mammalian evolution and biogeography</p> Signup and view all the answers

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