On an artificial reef in the Mediterranean Sea, the rocky bottom, the Dover sole, and the shrimp make up which of the following? Select all that apply.

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?