Pretty sure the answer to this question is neurons or nerve cells.
Answer:
In plate tectonics, a divergent boundary or divergent plate boundary is a linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundaries within continents initially produce rifts, which eventually become rift valleys. The mid-Atlantic ridge is an example of a divergent boundary, where the Eurasian Plate that covers all of Europe separates from the North American Plate. This underwater mountain range is constantly growing as new crust is formed. Further up that same boundary, it passes through Iceland.
example
Mid-Atlantic Ridge.
Red Sea Rift.
Baikal Rift Zone.
Explanation:\\
have a nice day ><
I would say radiation and the pressure of impact on the body.
