You are definitely describing Lois Lowry's The Giver.
Vertebra?
fish things
the chosen (things)
The song called "Little Things" by Zedakiah
They are called '' Foam Beans'' or '' Beanbag Stuffing ''.
That is called a waddle Dee
his observations revealed that they were living things and he called them little animals
the lungs. in the lungs there is are cool little things called bronchioles and in these bronchioles there are many hundreds of smaller things called alveoli.
Well, they have these convenient little things called lungs. *facepalm*
The Apostle Paul has given us the answer to your question. I Corinthians 1:26-29. "For you see your calling, brethren, that not many wise according to the flesh, not many mighty, not many noble are called. But God has chosen the foolish things of the world to put to shame the wise, and God has chosen the weak things of the world to put to shame the things which are mighty; and the base things of the world and the things which are despised God has chosen, and the things which are not, to bring to nothing the things that are, that no flesh should glory in His presence." HALLELUJAH! If you have eyes to read maybe you can understand this. Maybe not.
It is not specifically mentioned, but it is assumed that the priestesses are chosen by the gods themselves.
You need to be a little more specific.