× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
t
7
m
6
k
6
F
5
j
5
t
5
j
5
G
5
f
5
a
5
d
5
c
5
Home Q & A Board Science-Related Homework Help Psychology
New Topic  
duonghathuylinh duonghathuylinh
wrote...
Go to Answer
Posts: 608
Rep: 0 0
6 years ago
The melatonin taken orally as medication is
 
  A) synthesized from dopamine.
  B) exogenous.
  C) endogenous.
  D) both A and B
  E) both A and C
Read 43 times
1 Reply
Replies
Answer verified by a subject expert
IDJIDJ
wrote...
#1
Top Poster
Posts: 746
Rep: 3 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

duonghathuylinh Author
wrote...

6 years ago
Just got PERFECT on my quiz
veronee_madison
wrote...

Yesterday
this is exactly what I needed
lubennick
wrote...

2 hours ago
Thank you, thank you, thank you!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  787 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 845
  
 228
  
 234
Your Opinion
Which 'study break' activity do you find most distracting?
Votes: 820
Previous poll results: Who will win the 2024 president election?