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• Relative dating does not tell the exact age, it can only compare items as younger and older.• Absolute dating techniques can tell the exact age of an artifact by employing various techniques, the most popular being C-14 dating.I have integrated this web page on human evolution into an electronic text, " Nature's Holism - Holism.Evolution & Ecology " (see its HOME PAGE .) The result is that some areas, such as the glossary are shared.

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A single-celled organism is one that consists of only one cell.This type of dating employs many dating techniques like atomic clocks, carbon dating, annual cycle methods, and trapped electron method.Dendrochronology is another of the popular method of finding the exact age through growth and patterns of thick and thin ring formation in fossil trees.In contrast, a multicellular organism is one that is comprised of more than one cell and whose cells are organized into tissues, organs, and then into systems.Choose: No Frames Layout Choose: Human Evolution Frames .It is clear then that absolute dating is based upon physical and chemical properties of artifacts that provide a clue regarding the true age.

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