You discover a single-celled organism that does not have a nucleus,and you also notice that the culture is producing methane.In which group would you place this organism?

Question

Quizplus · Accepted Answer

The absence of a nucleus indicates that the organism is a prokaryote. Both bacteria and archaea are prokaryotes, but the fact that it produces methane suggests that it belongs to the Domain Archaea. Methanogens, an example of Archaea, produce methane as a byproduct of their metabolism.

You Discover a Single-Celled Organism That Does Not Have a Nucleus,and