× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
k
4
c
4
4
M
3
t
3
i
3
B
3
k
3
m
3
c
3
o
3
Home Q & A Board Science-Related Homework Help Psychology
New Topic  
mcranfield mcranfield
wrote...
Go to Answer
Posts: 571
Rep: 0 0
6 years ago
Insulin is
 
  A) a neurotransmitter.
  B) a metabolic hormone.
  C) an endogenous opioid.
  D) an exogenous opioid.
Read 65 times
1 Reply
Replies
Answer verified by a subject expert
tdclarktdclark
wrote...
#1
Top Poster
Posts: 762
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

mcranfield Author
wrote...

6 years ago
Thanks for your help!!
Gamiung3657
wrote...

Yesterday
Smart ... Thanks!
riptide
wrote...

2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  822 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 4165
  
 8029
  
 111
Your Opinion
Which is the best fuel for late night cramming?
Votes: 146
Previous poll results: Should Ph.D.'s be addressed as doctors?