Which of the following is most likely to have evolved to live in the deep layers of mud,where there is a complete lack of free oxygen
A)Obligate aerobe
B)Obligate anaerobe
C)Facultative anaerobe
D)Aerotolerant anaerobe

Question

Quizplus · Accepted Answer

Obligate anaerobes are organisms that cannot survive in the presence of oxygen and have evolved to live in environments without oxygen, such as deep layers of mud where oxygen is lacking. Obligate aerobes require oxygen to live and would not be able to survive in oxygen-depleted environments. Facultative anaerobes and aerotolerant anaerobes can survive in both oxygenated and oxygen-lacking environments, but they are not as well adapted to living in oxygen-depleted environments as obligate anaerobes.

Which of the Following Is Most Likely to Have Evolved