Which of These Traits is Most Strongly Associated with the Adoption

Question

Which of these traits is most strongly associated with the adoption of bipedalism?
A)fingerprints
B)enhanced depth perception
C)shortened hind limbs
D)opposable big toe
E)repositioning of foramen magnum

Accepted Answer

The repositioning of the foramen magnum, which is the opening in the skull where the spinal cord enters, is the most strongly associated trait with the adoption of bipedalism. In bipedal species, like Homo sapiens, the foramen magnum is located underneath the skull rather than at the back, allowing the spinal column to be oriented vertically beneath the skull for better balance and stability while walking upright.