Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
New Topic  
bromonox bromonox
wrote...
Go to Answer
Posts: 1042
Rep: 42 6
8 years ago
The earth is estimated to be approximately 4.6 billion years old.  Life appeared early in the history of Earth, but metazoans (multicelled organisms) did not appear until about 600 million years ago.  If the history of Earth were compressed into a single year, when would metazoans appear?
A) late September
B) mid-December
C) late January
D) late November
Textbook 
Earth Science

Earth Science


Edition: 14th
Authors:
Read 1380 times
3 Replies
Replies
Answer verified by a subject expert
PulsaPulsa
wrote...
#1
Top Poster
Posts: 1845
Rep: 393 0
8 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
lozadaoc,  123Brown

Related Topics

bromonox Author
wrote...
#2
8 years ago
Thx
wrote...
#3
5 years ago
i love this site it helps alot
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1282 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 79
  
 385
  
 74
Your Opinion
What's your favorite math subject?
Votes: 293
Previous poll results: What's your favorite funny biology word?