Answer:
Nebula: is an interstellar cloud of dust,hydrogen, helium and other ionized gases.
protostar: is a very young star that is still gathering mass from its parent molecural cioud.
Red Giant: is a luminous giant star of law or intermediate mass in late phase of stellar evolution.
That would be the ER (endoplasmic reticulum) and the Golgi apparatus.
If the earth did not rotate on its axis then the atmosphere would only circulate on its poles and the equator in a simple back and forth pattern.
