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Details Title: how it all began Description: vocab Total Flash Cards: 16 Created: 03/30/2006 21:33:59	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Outgassing Definition THe process whereby gases realesed from the earth's interior by volcanism formed atmosphere Term Monomer Definition A comparatively simple organic molecule, such as an amino acid, that can link with other monomers to form more complex polymers such as proteins. Term Photosynthesis Definition The metobolic process in which organic molecules are synthesized from water and carbon dioxide, using the radiant energy of the sun captured by chlorophyll Term Anaerobic Definition Refers to organisms that do not need oxygen Term Heterotrophic Definition Any organism taht depends on preformed organic molecules from its enviroment for nutrients. Term autotrophic Definition Describes organisms that synthesize organic molecules from inorganic raw materials as in photosynthesis. Term Prokaryotic Definition A cell that lacks a nucleus; the cells of bacteria and cyanobacteria Term craton Definition THe stable nucleus of a continent consisting of a shield of precambrian rocks and a platform of buried ancient rocks Term Silica Definition A compound of of silicon and oxygen.makes up the earth's crust-least dense Term Ediacaran faunas Definition Name for all Late proterozoic faunas with animal fossils similar to those of the ediacara fauna of australia Term BIF Definition Sedimentary rocks made up of thin alternative bands of silica (chert) and iron minerals Term photochemical dissociation Definition A process which water molecules in the upper atmosphere are disrupted by uv radiation to yeild free oxygen and hydrogen Term what composes cratons Definition Granite gneiss and greenstones Term Where do greenstones form? Definition in the basins between the island arc and the continent. Term The 1st bacteria Definition Denitrifiers and methanotrophs Term 3 major rock units for a greenstone belt Definition 1.Sedimentary unit 2. basalt 3.peridotite and basalt.