Membranes control whats good or whats bad to get inside the cell, basically it allows good things to pass into the cell and bad things to stay out
I would say the first option
In this case, organisms in the same order are more closely related than the members of the same kingdom.
The disease caused by this is known as <span>C. difficile colitis, and it is life threatening. So I would prescribe different based on patient. If they are already at late stages of infection I would prescribe penicillin if they are in earlier stages any type one antibiotic would do</span>