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Spoken languages are at least as old as _________________________.
Q3: As people became _, disturbed habitats became
Q24: Industrial societies have some of the earliest
Q31: The Apache Indians benefited from the study
Q48: How is human variation, such as skin
Q55: The unit of adaptation includes both:<br>A) technology
Q60: The ability to change one's class position
Q62: Tikal was probably located on a major
Q74: A unilineal descent group composed of at
Q92: Human biological variation is best expressed as
Q104: Clans have more genealogical depth than lineages.