How is the tooth adapt to its function ​

Im going to guess and say you are talking about the human tooth right? if so, the human tooth has adapted to crush small things, like nuts, and be able to mash softer things like fruit, while being able to cut into small pieces of meat as well

Explanation:

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.