As Hominins Diverged from Other Primates,which of the Following Appeared

Question

As hominins diverged from other primates,which of the following appeared first?
A)reduced jawbones
B)language
C)bipedal locomotion
D)the making of stone tools
E)an enlarged brain

Accepted Answer

Bipedal locomotion is believed to be the earliest and most significant development distinguishing hominins from other primates. Reducing jawbones, making of stone tools, and enlarging brain are all later developments in hominin evolution. Language development is difficult to pinpoint but is generally believed to have arisen much later in human evolution.