The first one is the 3rd option and the 2nd one is also the 3rd option
A eukaryotic cell is classified this way if it B. contains a nucleus. In biology the definition of eukaryotic is "having a true nucleus" which is how to depict a prokaryotic cell from a eukaryotic cell.
It disappears from existence completely, idk. ask your teacher. hope this helps!
Nitrogen Fixation. Good luck :)
