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Chapter 20: Controlling the Body

Difficulty Level: At Grade Created by: CK-12
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Hakeem is a talented skater, but he almost fell off this railing when his feet got tangled together. He thought he would fall, but in the blink of an eye, he used his muscles to shift his weight and keep his balance. His heart was pounding, but at least he didn’t fall and get hurt. How was Hakeem able to react so quickly? He can thank his nervous system for that.

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Grades:
7 , 8
Date Created:
Jan 22, 2015
Last Modified:
Dec 13, 2016
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