Question

select the text from the paragraph that best helps you understand that fusion means combining. there may be more than one correct choice. with age, the human skeleton undergoes a process of bone fusion. newborns bones are spongy and give way to pressure because they are made primarily of cartilage. these malleable bones make it easier for a newborn to pass through the narrow birth canal. over time, however, the bones gain more calcium and join together, forming the 206 bones that make up an adults skeletal structure.

Explanation:

The phrase "join together" directly implies the action of combining, which helps in understanding the meaning of "fusion" as combining.

Answer:

join together