× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
New Topic  
Madam Madam
wrote...
Posts: 722
Rep: 0 0
6 years ago
Describe prokaryotic cells and discuss the role they played in the early Earth. What will be an ideal response?
Read 45 times
1 Reply

Related Topics

Replies
wrote...
#1
6 years ago

A prokaryotic cell lacks a nucleus and organelles such as mitochondria and plastids. Bacteria
and archaea are examples of prokaryotic cells. The early photosynthetic organisms, including
cyanobacteria, were prokaryotic. They played an important role in the change in the atmosphere
from oxygen-poor to oxygen-rich. Mound-like stromatolites are the result of capture of
sedimentary particles by the filaments of these prokaryotic bacteria.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  882 People Browsing
 157 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 390
  
 3687
  
 1097
Your Opinion
Who will win the 2024 president election?
Votes: 3
Closes: November 4
Previous poll results: Do you believe in global warming?