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Adulthood and Aging loading

Describes early adulthood, middle adulthood, and old age.

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.
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    by CK-12 //basic

    This introduction to aging and the video on this webpage give different takes on aging in a very interesting way.

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