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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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Jermain_ Jermain_
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10 years ago

 
The rising phase of a cardiac pacemaker action potential is caused by a __________ current. 
A)
 
potassium   
B)
 
sodium   
C)
 
chloride   
D)
 
calcium   
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padrepadre
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10 years ago
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Jermain_ Author
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#2
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10 years ago
Thank you very much.
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