Is symbiotic relationship in which one organism benefits but the other is harmed?

Answer 1

*parasitism is where one animal is helped while other is harmed*

commensalism is where one is helped and other is not really affected

mutualism is where both animals are helped

Answer 2

When an organism benefits at the expense of another it is called Parasitism.

Answer 3

In a symbiotic relationship, both organisms benefit. If one organism is harmed, then it is a parasitic relationship.