1. Unit 2 Review
Day 2

2. Origin of life Section

3. Theory of Spontaneous Generation…
Contribution: Pasteur – disproved the entire theory
Of Spontaneous Generation by proving that bacteria exists in the air.
Problem: We did not know where life came from? Life needs water and oxygen!

4. Primordial Soup Theory
The first organism must have been prokaryotic, anaerobic and derived from inorganic (non-living) compounds must have combined with water vapor in to form water.
Miller and Urey Experiment
Problem: No other scientist can replicate the experiment

5. Endosymbiosis Theory
Eukaryotes obtained their organelles by engulfing prokaryotes

6. Hominid Evolution Section…

8. Bipedalism
Hominids became bipedal=walk on 2 legs
Bipedalism allows you to use your arms to carry things while you walk

9. With evolution came:
Language
Manufacture of tools
Making tools = no longer using teeth as basic tools = smaller jaw size

10. Evolutionary relationships