× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
s
5
g
5
K
5
o
5
g
5
o
4
k
4
s
4
I
4
k
4
j
4
o
4
Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
New Topic  
yxc47 yxc47
wrote...
Go to Answer
Posts: 739
Rep: 0 0
6 years ago

The mass extinction in the geologic record, which proved to be the most devastating to life on Earth, occurred at the
  end of the ____.
  a. Cambrian
  b. Cretaceous
  c. Devonian
  d. Ordovician
  e. Permian
Read 32 times
1 Reply
Replies
Answer verified by a subject expert
Jmassey95Jmassey95
wrote...
#1
Top Poster
Posts: 644
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

yxc47 Author
wrote...

6 years ago
Correct Slight Smile TY
Loruiz15
wrote...

Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
larrybrads
wrote...

2 hours ago
Helped a lot
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  958 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 180
  
 259
  
 279
Your Opinion
What's your favorite funny biology word?
Votes: 334
Previous poll results: Who's your favorite biologist?