8.31.05 - August 31, 2005 Three Domains: Bacteria, Archaea,...

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August 31, 2005 Three Domains: Bacteria, Archaea, Eukarya But what about before these, with the ORIGIN OF LIFE? Ideas Spontaneous Generartion, was disproved my the meat and maggot experiment also disproved by Pasteur in his flask experiment. What scientific theories of origin ust explan mechanism for 1 st appearance why that doesn’t happen now first “Replicator” molecule Theories for the Origin of Life Biblical texts supposedly estimate the eart’h age at about 4004 yrs, but nto real evidence Intelligent Design – Life is too complex to have been simply created spontaneously Age of the Earth 4.5-4.8 BYA Solar System 10-20 BYA After big bang, and cooling, rocks began to form on Earth First rocks 4.1-4.3 BYA We know this because of radiometric decay o Elements with isotopes that decay into other elements are found in rocks o i.e. Uraniam 348, Carbon 14 o You can measure using the half life. o
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This note was uploaded on 02/11/2008 for the course BIO G 101 taught by Professor Gilbert,c. during the Fall '07 term at Cornell.

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8.31.05 - August 31, 2005 Three Domains: Bacteria, Archaea,...

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