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The span of Homo sapiens sapiens’ time on earth
Emanuel Leutze’s Washington Crossing the Delaware (1851) is riddled with historical inaccuracies, mo
Gossip and ridicule increase the status insecurity of this time of life.
In middle childhood, children spend increasing amounts of time with peers and friends.
Cyanosis as shown here at the patient’s fingertips results from a lack of oxygen in the tissues
Arterial insufficiency