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Bodies postmortem - 1:BodiesPostMortem Whathappenstobodies,...

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1    : Bodies Post-Mortem     What happens to bodies, tissues and DNA post-mortem? Process of degradation: o Autolysis – degeneration of body tissues by digestive fluids o o Factors affecting degradation: o Temperature o Humidity o Trauma o Burial depth o Insects o Bacteria o Fungi Preservation levels: o Excellent in dry/colder climates o Poor in humid/warmer climates How do things get preserved? o Taphonomy o Preservation can be enhanced Colder climates (northem latitudes) Drier condition (caves, permafrost) Anoxic lakes (water logged) Post-mortem DNA degradation o Scavengers o Insectrs o Fungi o Bacteria o Protozoa o Cellular mechanisms: enzymatic digestion o Heavily dependent upon environmental and time condiition Reactions affecting preservation o Chemical processes
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Bodies postmortem - 1:BodiesPostMortem Whathappenstobodies,...

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