It is aggression targeted at someone or something that didn't instagate the aggression.
your gallbladder releases some of that concentrated bile into your intestine
True. If it is a bacterial infection that it can be treated with antibiotics but if it's a viral infection, you can't get rid of it. The best you can do is lessen the pain or heal the ulcers that may show up.
It's quickly defines HEALTH
The human body is made of organ systems that work together to maintain (balance or homeostasis)