First Life
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Some cells engulfed each other leading to the formation of more complex cells that we now call _______
Eukaryotes
Earth's atmosphere had to be very hot and little oxygen for the first ____ molecules to first form
Organic
When cells gained the ability to do ______, they used up carbon dioxide and put more _____ into the atmosphere
Photosynthesis, Oxygen
_____ cells were the first to evolve
Prokaryotic
Organic molecules clumped together for form _______ structures that later evolved into cells
Self- replicating
With more oxygen in the atmosphere, a wider ____ organisms evolved on land.
Variety
