Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
New Topic  
mattiewal mattiewal
wrote...
Go to Answer
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 980 times
2 Replies
Replies
Answer accepted by topic starter
bio_manbio_man
wrote...
#1
Educator
Top Poster
Posts: 33233
Rep: 3442 15
12 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

mattiewal Author
wrote...
#2
12 years ago
Thanks a lot!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1098 People Browsing
 110 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 271
  
 345
  
 22
Your Opinion
How often do you eat-out per week?
Votes: 79
Previous poll results: What's your favorite funny biology word?