What is your opinion about the constant usage of antibiotics now days? Is there side effects of over usage? Name specific examples and their mode of action in your discussion.

1- What is your opinion about the constant usage of antibiotics now days? Is there side effects of over usage? Name specific examples and their mode of action in your discussion.
2-Microbial Diseases of the Nervous System …Could changes to the microbiota offer resistance against diseases that affect the nervous system?
3-In a 300-word essay, describe the structure of the skin and mucous membranes and the ways pathogens can invade the skin.