Biology Forums - Study Force

The conclusion that early hominins were
  bipedal is based in part on examination of
  a. their S-shaped backbone.
  b. the position of the foramen magnum.
  c. footprints.
  d. positions of the foramen magnum, S-shaped
  backbone, and footprints.
  e. length of the femur.

Question 2

Hominins are characterized by
  a. further expansion and elaboration of the
  brain.
  b. bipedalism.
  c. omnivorous feeding behavior.
  d. further expansion and elaboration of the
  brain and bipedalism.
  e. further expansion and elaboration of the
  brain, bipedalism, and omnivorous feeding
  behavior.

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I just wanted to write to say thanks a bunch for the answer!