bipedalism-is-considered-a-very-old-trait-which-of-the-following-provided-clue-o

Question

Bipedalism is considered a very old trait. Which of the following provided clue of an upright stance among hominins?

Accepted Answer

the opening in the skull base in which the spinal cord exits

Answer

the number of vertebrae

Answer

the presence of coccyx

Answer

the size of vertebrae