1. Abiogenesis

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

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

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

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

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

9. 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

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