When a snake flicks its tongue, it is gathering odor particles for transfer to two fluid-filled sacs at the roof of the mouth -- Jacobson's organs -- that lead to a second, smaller olfactory chamber. The tongue is used only to assist in this process; snakes do not have a sense of taste.
A eukaryote is a type of cell (or unicellular organism) that possesses a nucleus and membrane-bound organelles, in contrast to prokaryotes (bacteria and archaea) which don't. Eukaryote means good/true nut/kernel in Greek, referring to the nucleus, while prokaryote means before nut/kernel.
a prokaryotic cell is a cell that does not have a nucleus or membrance covered organelles. and a a eukaryotic is a is a cell that has a nucleus membrane covered organelles.2 people found this useful. Edit.ukaryotic cells have a nucleus, while prokaryotic cells do not have a nucleus   Eukaryotic cells have a nucleus, while prokaryotic cells do not have a nucleus.