12 Mai 973898584 Jahr v. Chr. - 1st Life forms evolve: 4.00 bya
Beschreibung:
-The chemistry of the oceans made them the perfect place for life to be
-They were simple bacteria. It took many millions of years for more complex cells to develop. Some of these new complex cells learned to photosynthesize, making food from the energy of the sun. They had an important job to do. They helped make the air and water around the Earth full of oxygen
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