Top Posters
Since Sunday
4
n
3
j
3
o
2
x
2
c
2
2
p
2
n
2
3
2
C
2
z
2
New Topic  
mattiewal mattiewal
wrote...
Posts: 24
Rep: 0 0
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
Read 982 times
2 Replies
Replies
Answer accepted by topic starter
bio_manbio_man
wrote...
Educator
Top Poster
Posts: 33251
12 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

mattiewal Author
wrote...
12 years ago
Thanks a lot!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  985 People Browsing
Related Images
  
 4432
  
 152
  
 102
Your Opinion
Where do you get your textbooks?
Votes: 372