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H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor
Levallois points and flakes from Kapthurin, Kenya date to between 200,000 and 280,000 years ago.
Results from sequential study of two cohorts tested at three ages and at three different points in t
Democracy (or “democratization”) is a global social movement. People all over the world yearn ...
Trends in employed mothers with a child/children younger than 3 years of age
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...