Basic question about symbiosis( or about kinds of symbiosis)?

Question

Is there a type of symbiosis where an organism is harmed and the other is neither harmed nor helped? If not, do you think there's a term for this sort of relation between two organisms?

Answer 1

I look at symbiotic relationships like this:

Organism A benefits + Organism B is negatively affected = parasitism

Org A benefits + Org B benefits = mutualism

Org A benefits + Org B unaffected = commensalism

A :) + B :( = parasitism

A :) + B :) = mutualism

A :) + B(meh) = commensalism

:) Hope that helps!