Answer:
I thought it was cell division
Nervous muscle action pressure
Cellular differentiation describes how different cells perform different processes and have unique functions. There are at least 250 cells in the human body and each one plays a different role, and <em>all</em> of them are crucial to the body's ability to maintain homeostasis. For example, liver cells produce proteins that are important in blood clotting. If these cells are damaged, blood will not clot properly. If blood does not clot, a body cannot maintain homeostasis and the person will fall ill.
TL;DR: every cell plays its part and keeps the organism alive.
This is a spectacular sight because the only time the Sun's corona can be seen is during a total solar eclipse. Also visible during a total solar eclipse are colorful lights from the Sun's chromosphere and solar prominences shooting out through the Sun's atmosphere.
