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Main Points of this Timeline:
Main Points of this Timeline:
- Earth is approximately 4.5 billion years old
- Prokaryotes (bacteria) appeared around 3.7 billion years ago
- Eukaryotes appeared approximately 2.7 billion years ago
- Cambrian explosion: Mass extinctions lead to punctuated equilibrium = a ton of new species!
Simulating Early Earth...
Simulating Early Earth...
Click below to read about what we know about early Earth
Click below to read about what we know about early Earth
Read more about it... honors extension
Read more about it... honors extension
Endosymbyotic Theory:
Endosymbyotic Theory:
The aerobic bacterium gave rise to the mighty mitochondria and the cyanobacteria maintained its photosynthetic properties and became modern day chloroplasts.
The aerobic bacterium gave rise to the mighty mitochondria and the cyanobacteria maintained its photosynthetic properties and became modern day chloroplasts.
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