The presence of a membrane bound nucleus describes the evolution of eukaryotes from prokaryotic organisms. The endosymbiotic theory describes the same, the large cells engulfed the smaller ones, and the engulfed cells were not digested but started living in mutual cooperation with the engulfing cell. Mitochondria and chloroplast are thought to be the engulfed cell
I think the answer is B - a star! Hope this helps!
Fungi because of the rotting and in moist places
If we don't drink water, we will not be able to flush out our waste. Dehydration could cause headache, fainting, death.
