When an archaeologist examines the polish or residue found on the edges of an ancient stone tool, she is doing a(n) __________.
A. neolithic study
B. trace element analysis
C. use-wear study
D. pressure-flake analysis
Question 2
In their study of 56 stone artifacts from Koobi Fora, Lawrence Keeley and Nicholas Toth were able to determine __________.
A. where the tools had come from
B. what some of the tools had been used for
C. that all of the tools were made by one individual
D. the precise date the tools were manufactured
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) Ornithine and citrulline, which are not found in proteins
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