× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
c
5
j
5
a
5
L
5
f
5
j
5
D
4
k
4
y
4
t
4
h
4
l
4
Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
New Topic  
Jayfan25 Jayfan25
wrote...
Go to Answer
Posts: 453
Rep: 0 0
6 years ago
Paleontologists estimate that ________.
 
  A) extinction is tied exclusively to human activities
  B) more than 99 of all species alive today have been discovered and described
  C) 99 of all species that have ever existed are now extinct
  D) biodiversity is evenly spread over the earth's biomes
Read 85 times
1 Reply
Replies
Answer verified by a subject expert
heyouheyou
wrote...
#1
Posts: 376
Rep: 6 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Jayfan25 Author
wrote...

6 years ago
Thanks for your help!!
Cdfields
wrote...

Yesterday
Smart ... Thanks!
my2redeyes
wrote...

2 hours ago
Just got PERFECT on my quiz
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  938 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 143
  
 117
  
 341
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 432
Previous poll results: Does a gender wage gap exist in America?