Bipedalism,considered a Key Defining Characteristic That Differentiated Early Hominins from Other

Multiple Choice

Bipedalism,considered a key defining characteristic that differentiated early hominins from other apes,

A) may have evolved as a result of anatomical changes caused by stone tool manufacturing.
B) evolved as a result of anatomical changes caused by an increase in brain size.
C) perhaps developed in the woodlands but became even more adaptive in a savanna habitat.
D) resulted in greater exposure to heat stress because on two feet, hominins spent increasingly more time in the open grasslands.
E) was accompanied by a sharp increase in hominins' climbing abilities.