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 normally a bacteria. A prokaryotic cell does not have a membrane around it's nucleus, it has loops of DNA free in its cytoplasm.A eukaryotic cell is any cell with many organelles (other parts which help it function) and a membrane-bound nucleus.The nucleus is the key difference-if it has a membrane, it is Eukaryotic/a Eukaryote.If not, it is Prokaryotic/a Prokaryote. eukaryotic cell is any cell with many organelles (other parts which help it function) and a membrane-bound nucleus. The nucleus is the key difference-if it has a membrane, it is Eukaryotic/a Eukaryote. If not, it is Prokaryotic/a Prokaryote.