Answer:
diaphysis/shaft
Explanation:
In long bones the primary centers occur in the diaphysis/shaft and in irregular bones the primary centers occur usually in the body of the bone.
Ever wonder what that beeping noise is on a Submarine? That's the sound that people use to bounce off walls and stuff.
This is called sonar detection. It enables us to tell where things are in the water like a Dolphin!
It is implanted within the Uterus where it will grow into a fetus. Hope this helps! :)
They ensure they leave the system and they also ensure that people get the nutrients they need.