Radiometric dating activity answers

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In his work on biology, he avoided the effort to treat biological entities by the use of rigid formal logic, and, though he made some inevitable errors in fact, his pragmatic approach has served as a model for biological observation ever since.

Overlying soil is removed, with care being taken to note its natural layers and the exact position of each object and artifact discovered in the process.Actual hominid skeletal remains are quite rare, but once stone tools begin to appear in the archaeological record, the areas occupied by toolmakers can be traced through the time writing begins and prehistory proper comes to an end.The task of discovering the extent and form of prehistoric tools is the focus of archaeology.In the 4th century BC, the Greek philosopher Plato somewhat flippantly defined "man" as an erect and featherless biped.Subsequently Diogenes the Cynic, in an equally flippant fashion, displayed a plucked chicken and declared, "Here is Plato's man." Plato's student, Aristotle, also was concerned with verbal definitions and distinctions, but he went on to describe the natural world in a matter-of-fact fashion that has earned him recognition as the founder of the biological sciences.

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