I thinks its a layer of soil with characteristic properties, sorry if its wrong I'm a beginner
Mitochondria - Within eukaryotic cells, mitochondria function somewhat like batteries, because they convert energy from one form to another: food nutrients to ATP.
Protostar
Then main phase so there are two possibilities:
1. Average size star (size of the sun)
Undergoes main phase, then becomes a red giant, then planetary nebula, then white dwarf.
2. Massive star
Undergoes main phase, then red supergiant, then supernova (star implodes) then the star becomes a neutron star OR if it was REALLY big a black hole.
