Question

question 19 2 pts ______ bacterial cells may or may not use oxygen.
○ aerobic
○ anaerobic
○ facultative

Explanation:

To solve this, we analyze each option:

• Aerobic bacteria require oxygen to survive.
• Anaerobic bacteria cannot survive in the presence of oxygen.
• Facultative bacteria can use oxygen but do not require it, meaning they may or may not use oxygen depending on the environment.

Answer:

C. facultative