Number of bones at birth

a baby has 300 bones at birth

A baby's body has about 300 bones at birth. These eventually fuse (grow together) to form the 206 bones that adults have. Some of a baby's bones are made entirely of a special material called cartilage (say: KAR-tel-ij). Other bones in a baby are partly made of cartilage.

The correct answer that would best complete the given statement above would be the term STEEL. The Bessemer process created strong, lightweight called steel. The Bessemer process is the first process of making or mass producing steel. Hope this is the answer that you are looking for. Thanks for posting!