The large intestine is an environment that lacks any oxygen. Which of the following types of organisms would most likely be found there?

The large intestine is an environment that lacks any oxygen. Which of the following types of organisms would most likely be found there? 



A. Obligate aerobe
B. Obligate anaerobe
C. Microaerophile
D. Aerotolerant anaerobe


Answer: B. Obligate anaerobe


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