There are 9 conditions associated with metallic taste in mouth, strange smell or taste, taste of acid in mouth and unusual taste in mouth.
A relationship in which one organism lives on or inside another  organism and harms it is called parasitism.This is a form of a  symbiotic relationship. Edit. Share to: Judy Olmsted. 79,817 Contributions. Retired college science professor. Member of Beta Beta Beta Biological Honor Society. relationship in which one organism lives on or inside another  organism and harms it is called parasitism.
In the broad sense, symbiosis refers to all forms of close association between organisms of different species, including parasitism, which is called antagonistic symbiosis. Symbiosis is usually mutualistic, that is, living together is mutually beneficial for both organisms (symbionts).