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Evolution of Early Mammals

Levels are CK-12's student achievement levels.
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.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Video
    Did mammals evolve from fish?

    Did mammals evolve from fish?

    by Charles Yu //at grade

    In this video, through a dissection of a giraffe, Richard Dawkins finds evidence that mammals may have evolved from fish. Courtesy of CMETRIQUE

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