MCQ
Which characteristic feature helps human being to walk upright?
  • A
    Their head bones are light.
  • B
    They have two legs.
  • C
    They do not have tail.
  • Their backbone holds the body up vertically.

Answer

Correct option: D.
Their backbone holds the body up vertically.
Skeletal system gives shape and support to our body. The backbone holds the body upright.

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