Which one of the followings need less amount of oxygen to survive? a. Microaerofilic microorgansims b. Aerotoleran c. Anaerobic microorganisms d. Aerobic organisms Clear my choice

The correct answer is c. Anaerobic microorganisms.<br /><br />Anaerobic microorganisms are able to survive and grow in the absence of oxygen. They do not require oxygen for their metabolism and can thrive in environments with little or no oxygen. In contrast, aerobic organisms require oxygen for their survival and growth, while microaerophilic microorganisms and aerotolerant organisms have a limited requirement for oxygen.