Which of the following is a characteristic of facultative anaerobes?
1. They can only survive in the presence of oxygen.
2. They can only survive in the absence of oxygen.
3. They can switch between aerobic and anaerobic metabolism.
4. They require high concentrations of oxygen for growth.
5. They produce oxygen as a byproduct of metabolism.

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***3*** ∻Key Concept∻ ⚹Facultative Anaerobes⚹ ∻Explanation∻ ⚹Facultative anaerobes are organisms that can switch between aerobic and anaerobic metabolism depending on the availability of oxygen.⚹◊What is the metabolic advantage of facultative anaerobes being able to switch between aerobic and anaerobic metabolism?⍭ Generate me a similar question◊

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