Question

Imagine our backbone was a single long bone instead of a series of bones. What would have happened to us? Justify.

Answer 1

Answer:

If the backbone - spinal cord is made of a long bone rather than a series of small bones (segments) then we will have difficulty in movements. There will be problem in bending forward, backward and sideways with flexibility. The shape of the back of human body is due to the shape of the spinal cord.