The Large Browridges and the Ridge at the Back of the Skull

Multiple Choice

The large browridges and the ridge at the back of the skull of Homo erectus are

A) larger in females than in males.
B) needed to buttress the skull against novel stresses created by an increased emphasis on tearing and biting.
C) characteristic of australopithecines as well.
D) smaller than those seen in australopithecines.