Monday
May 25, 2015

Homework Help: science

Posted by gabie on Friday, May 18, 2007 at 4:52pm.

cyanobacteria,wich first appeared on earth over 3 billion yaers ago are?

a.austrolopithecines
b.prokaryotes
c.one of the organisms on land
d.descendents of primitive plants

http://en.wikipedia.org/wiki/Cyanobacteria
Read 1st Paragraph

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Members