× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
w
5
a
3
j
2
a
2
t
2
u
2
r
2
j
2
j
2
l
2
d
2
y
2
New Topic  
jai jai
wrote...
Posts: 466
Rep: 0 0
6 years ago
The effectiveness of geographic barriers in promoting speciation is related most to ____.
  a. the absolute size of the barrier
  b. the inability of the organisms to overcome the barrier
  c. the speed at which the barrier forms
  d. how long the barrier exists
  e. the size of the population it separates

Question 2

Allopatric speciation requires ____.
  a. accelerated gene flow
  b. physical separation
  c. physical diversity
  d. behavioral diversity
  e. sexual selection
Read 66 times
3 Replies
Replies
Answer verified by a subject expert
romanknromankn
wrote...
Top Poster
Posts: 546
Rep: 2 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

jai Author
wrote...
6 years ago
Cheers!!
wrote...
6 years ago
Cheers too Thumbs Up Sign
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1351 People Browsing
Related Images
  
 220
  
 1706
  
 529
Your Opinion
Do you believe in global warming?
Votes: 488

Previous poll results: What's your favorite coffee beverage?