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.
Symbiosis is a relationship between two or more organisms that live closely together. There are several types or classes of symbiosis: Commensalism One organism benefits and the other is neither harmed nor helped. Mutualism Both organisms benefit. An obligate mutualist cannot survive without its partner; a facultative mutualist can survive on its own. Parasitism One organism (the parasite) benefits and the other (the host) is harmed. To be successful, a symbiotic relationship requires a great deal of balance. Even parasitism, where one partner is harmed, is balanced so that the host lives long enough to allow the parasite to spread and reproduce. These delicate relationships are the product of long years of co-evolution.