The question is incomplete.
No options (for which of the following) are given to answer the question.
Yeah, they do.
gingeritis
NO! bacteria causes a host of diseases, among them pneumonia, typhoid, tuberculosis, and the notorious flesh eating bacteria is certainly not useful.
Maybe it can also be a feeling but not a trait I think
Bacteria is on basically everything, however bacteria doesn't always cause a horrible disease and stuff like that... For example, bacteria is purposefully used to make yogurt, cheese etc.
No
your nervous system is always at work!
Example sentence - Her husband was nervous about the birth of their baby.
Any age. all people have sleeping disorders and some people just always have had sleeping disorders. i'ts called insomnia
Bacteria is always present in the mouth.
sympathethic nervous system
Blood disorders are not okay. Some of the disorders can be maintained with the help of medications. However, they do not promote good health as the disorders are always hindering optimum cellular health.
Not nesesarally.
Bacteria. Always have been, always will.
Chlamydia is not for life; it can be treated.
Viruses are always smaller than bacteria.
Yeah, they do.