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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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mattiewal mattiewal
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12 years ago
16.   The chemical ion or molecule, found within the muscle cell, that is primarily responsible for initiating the contraction of a muscle fiber is:
a.   Na+
b.   K+            
c.   Ca2+
d.   ADP
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bio_manbio_man
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12 years ago
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mattiewal Author
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#2
12 years ago
Thanks a lot!
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