× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
New Topic  
ppk ppk
wrote...
Valued Member
On Hiatus
Posts: 3561
12 years ago
Uterine implantation due to enzymatic digestion of the endometrium is initiated by the     
A) chorion.
B) trophoblast.
C) endoderm.
D) mesoderm.
E) inner cell mass.
Read 2996 times
1 Reply

Related Topics

Replies
wrote...
Educator
12 years ago
It's B
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1314 People Browsing
 113 Signed Up Today
Related Images
  
 4713
  
 49
  
 257
Your Opinion
Who's your favorite biologist?
Votes: 586

Previous poll results: Do you believe in global warming?