The earliest life forms were mostly different kind of bacteria and plants and other organisms.
Cells are the smallest form of life able to survive on their own.
At the same time life began on Earth billions of years ago is when germs formed.
in swapty forsets
It depends on what u believe in theres the bible and theres science..... Scientist say that an asteroid hit the moon causing a big chunk to come off, all the space matter and that chunk started to form earth. on earth there was a bunch of volcanoes and it was very hot, water started to form in a hole then bacteria started to form, the bacteria went through Evolution creating modern day humans.....
Stromatolites are one of the earliest known life forms; some fossils may date back 3.5 billion years - before Earth had any oxygen in it's atmosphere.
Cyanobacteria.
cyanobacteria
Cyanobacteria
The earliest ones still around are stromatolites, but there were lots of earlier life forms.
All land animals evolved from under the water. I would say fish and ammonites.
The prevailing theory of the origin of life on earth posits that it began in the oceans.
The earliest life forms were mostly different kind of bacteria and plants and other organisms.
The earliest forms of life were microscopic autotrophs that lived in the great prehistoric oceans. Living under the water protected them from the deadly UV rays from the sun, as at this point Earth had not developed a suitable atmosphere. This is true everywhere but Kansas, where the earliest life forms were Adam and Eve. Zing!
By creating the crust
the were archbacteria they were the simplest bacteria and didn't use oxygen
It's what we breathe, Oxygen.