You know that there are aerobic and anaerobic organisms. And who are facultative anaerobes?

These are organisms whose energy cycles pass along the anaerobic pathway, but which can exist when oxygen is available, in contrast to obligate anaerobes, for which oxygen is harmful.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.