Biology, Science, History

7th -

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The Paleozoic era

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  • 1. Multiple Choice
    30 seconds
    1 pt

    The Paleozoic era is the ــــــــــــــــــــ era in the Phanerozoic eon.

    oldest

    Youngest

    Smallest

    Shortest

  • 2. Multiple Choice
    30 seconds
    1 pt

    which two period make up the middle Paleozoic?

    Cambrian and Permian

    Silurian and carboniferous

    Silurian and Devonian

    Cambrian and Ordovician

  • 3. Multiple Choice
    30 seconds
    1 pt

    the Paleozoic era ended with ______ .

    The biggest party ever

    The largest mass extinction in Earths history

    Cambrian explosion

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