PLEASE HELP THIS IS SERIOUS, ILL MARK BRAINLIEST IF POSSIBLE. Can a relationship between organisms be both parasitic and commensalism at the same time? I seriously doubt it I'm just having second thoughts because this test has a lot of pressure on it;;;

Prokaryotic and eukaryotic cells are different in many ways other than the presence or absence of a nucleus. if both archaebacteria and eubacteria are prokaryotic cells, then why are archaebacteria more closely related to eukaryotic cells than they are to eubacteria?