The Methanogenic Archaeans are ____

Question

The methanogenic archaeans are ____.  
A) aerobes
B) facultative anaerobes
C) strict aerobes
D) facultative anaerobes..
E) strict anaerobes.

Accepted Answer

Methanogenic archaeans are strict anaerobes, meaning they can only live and grow in environments that lack oxygen. They produce methane as a metabolic byproduct in such anaerobic conditions.