GLGY 202 Quiz: stable isotopes have different half life

• School: University of Calgary
• Department: Geology
• Course: GLGY 202
• Professor: M.Dan Georgescu

Document Summary

Volcanoes erupt release toxic gases(-oxides), large asteroids and meteors falling into the earth"s atmosphere. The crystals of graphite in the isua group represent the molecules from the primordial soup. Polymerization of amino acids leads to the formation of proteins. Cyanobateria occurred mostly individually sometimes in small clusters. Stromatolites-represent the oldest life force on earth (rock structures) Bif=banded iron formations from the era when volcanoes released iron in lava. Eukaryotes were discovered in clusters of 10"s of 1000"s of cells. Bangiomorpha red algea: was the first organism in earth"s history which started to rise to capture more sunlight. Torridonophycus-green algae:in periods of extreme climatic changes the organism gets surrounded by some stuff and once the period passes returns to original state. Melanocyrillium- demonstrates a major evolutionary period : had animal like metabolism which eventually led to the birth of life. First organisms (ediacara)-no hard body parts or sensory parts, most resemble jelly fished.