yes, a relationship is good for one organism but many times there are two organisms that are share a relationship...
A natural relationship in which one organism lives in or on another organism and benefits from the relationship while the other organism may be harmed is a parasitic relationship.
It is called Commensalism- a relationship in which one organism benefits from another organism but does not harm it
This is called parasitism.
parasite relationship
It is called Commensalism- a relationship in which one organism benefits from another organism but does not harm it
"predator"
Predation is the type of relationship where one kind of organism feeds on another. A snake eating a mouse is an example of a predation relationship.
If the organism are alive, it is called parasitism.
commesalism
Parasitic relationship means that when one person benefits from the other person but the other person does not benefit.
It depends on what type of relationship they have. Parasitism is when one organism lives in or on another organism and harms it. Mutualism is when two organisms benefit from their relationship. Commensalism is when one organism benefits from the relationship and the other is not helped, nor is it harmed.
predator-prey relationship