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History of Paleozoic Life loading

Reveals the patterns of biological evolution during the Paleozoic, from the Cambrian explosion to the largest extinction of all time at the end of the Permian.

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Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
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    History of Paleozoic Life

    History of Paleozoic Life

    by CK-12 //basic
    Patterns of biological evolution during the Paleozoic Era.
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  • Video
    The Permian Mass Extinction

    The Permian Mass Extinction

    by CK-12 //basic
    Learn about the Permian Mass Extinction. The Permian Mass Extinction killed 95% of life on Earth due to a 10 degree increase in global temperature.
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  • Real World Application
    The Biggest Killer

    The Biggest Killer

    by CK-12 //basic
    The Permian mass extinction was the biggest in Earth history. Scientists do not know what caused it but there are several possibilities.
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