Question

Small bones that make up the back bone are know as

Answer 1

The backbone of vertebrates is made up of 26 bones called vertebrae (24 vertebrae separated by cartilage and the sacrum and the coccyx).

Answer 2

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The structural composition of back bone allows us to bend, crouch, stand and lie down on the ground. The vertebral units promote this movement. If back bone is made up of one long bone then we would never be able to sit, crouch or lie. One single bone means no flexibility in the structure of a bone.