the answer to that question is embryo
I dont think i'm answering your question, but the sun turns into a red giant, and the more it gets bigger it gets, the more closer it is to the planets. Then eats up the the planets later on, and explodes. Dont know if im correct tho sorry
The sun
is beacuse ti is the biggest star ever
The mitochondria is the powerhouse of the cell because it produces ATP, which is energy.
