Top Posters
Since Sunday
Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
New Topic  
melaa melaa
wrote...
Go to Answer
Posts: 622
Rep: 0 0
6 years ago
Why do we think that the forest communities of eastern North America have changed dramatically over the past 18,000 years?
A) Glacial retreat exposed land for primary succession that long ago.
B) Large fires exposed land for secondary succession that long ago.
C) Successional changes are typically very rapid and all communities change at this speed.
D) Pollen evolved at this time.
Textbook 
Elements of Ecology

Elements of Ecology


Edition: 9th
Author:
Read 51 times
1 Reply
Replies
Answer verified by a subject expert
By_NeFReTBy_NeFReT
wrote...
#1
Posts: 490
Rep: 2 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

melaa Author
wrote...

6 years ago
Just got PERFECT on my quiz
derya1234
wrote...

Yesterday
Good timing, thanks!
Shassta22
wrote...

2 hours ago
This helped my grade so much Perfect
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1234 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 989
  
 288
  
 970
Your Opinion
Which country would you like to visit for its food?
Votes: 204
Previous poll results: Who's your favorite biologist?