BIO 1130 Lecture Notes - Lecture 5: Chemical Evolution, Panspermia, Surface Tension

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

2bil 3bil was going for a molten core that was melting and cooling, constantly, no stability. Has enough gravitational force to be able to told an atmosphere. Curst of the earth and water in this eon. In the ocean life will be in it in the 3billion years. High level of energy and transfer them from different compounds. Soon oxygen was created and the organism that were anaerobic does not live anymore and move away. Phanerozoic 543ma to present time- multicellular organism. Proterozoic (2500 543ma) oxygen atmosphere, single celled aerobic organism. Archaeeam (3800 2500 ma) anaerobic, bacterial life, oxygen starts to accumulate. Hadean (4600ma-3800ma) formation of the solar system and planet, ends with origin of life. Sperm will only go directly to the egg, pollentor. Marine invertebrates, algae, camrian explosion, first land plants and insects. Long length of time for this to happen. Large object collecting solar systems, lots of matter sucking up and building.