Question

Give reasons why backbone is formed of many ring-shaped bony pieces ?

Answer 1

The backbone is formed of many ring shaped pieces for two reasons: it has many pieces because this allows it to bend in many places, giving it great flexibility, and it is ring shaped so that it can contain and protect the spinal cord.

Answer 2

Hello dear Good morning your answer....
In most chordates(vertebrates),notochord is Mehndi replace during embryonic development by Bony vertebrae of the vertebral column.It increases locomotory power and internal support which protect the spinal cord and nerves and provides structure to the body...

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