Abiogenesis

Abiogenesis – creation of life from non-living molecules NOT THE SAME AS EVOLUTION

First life was likely simple Bacteria-like 3.6 Billion years ago First life was likely simple Bacteria-like Single-celled, no organelles

Early Earth had NO OXYGEN Atmosphere had CO2, Carbon monoxide, nitrogen, water, hydrogen

Banded-iron formations show that oxygen didn’t always exist on Earth

Stanley Miller and Harold Urey Miller-Urey Stanley Miller and Harold Urey Tested whether or not organic molecules could arise naturally on early Earth

1) Boil water (turn into vapor) Steps of Miller-Urey 1) Boil water (turn into vapor) 2) Run an electric spark through the vapor + gases found on early Earth 3) Examine created molecules

Results: Amino acids were created Demonstrates that organic molecules (amino acids) can be created by chemical processes