× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
6
s
3
3
d
3
s
2
c
2
G
2
y
2
t
2
2
k
2
j
2
Home Q & A Board Science-Related Homework Help Psychology
New Topic  
Kiaalyce1 Kiaalyce1
wrote...
Go to Answer
Posts: 626
Rep: 0 0
6 years ago
A scan shows that a particular substance has spread throughout the body via the bloodstream but has not entered the brain. This finding demonstrates the existence of:
 
  a. the blood-brain barrier.
  b. the doctrine of specific nerve energies.
  c. blood efficacy.
  d. medicine effects.
Read 48 times
1 Reply
Replies
Answer verified by a subject expert
estiee3estiee3
wrote...
#1
Top Poster
Posts: 834
Rep: 3 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Kiaalyce1 Author
wrote...

6 years ago
this is exactly what I needed
vanna2014
wrote...

Yesterday
Good timing, thanks!
TAT1238
wrote...

2 hours ago
Correct Slight Smile TY
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1018 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 61
  
 5710
  
 119
Your Opinion
What's your favorite funny biology word?
Votes: 336
Previous poll results: Who will win the 2024 president election?