When one organism benefits and the other is harmed.
transitive verb : to bring into a mutual relationintransitive verb : to have a mutual relationship
It is a relationship of mutual exclusivity.
The essential ingredients in a personal relationship are mutual affection and trust.
love friendship caring mutual understanding respect
two organisms benefiting from the relationship
mutual relationship (when both organisms's benafit)
The relationship these two organisms would share would be called a mutual(istic) symbiotic relationship.
Mutual: in agreement by all parties involved. We have a mutual understanding that sentence structure can be tricky.
If they have a high enough mutual relationship they can.
Mutualism is a biological interaction between two organisms, where each individual derives a fitness benefit
sexual attraction or mutual attraction
The relationship between caribou and the bacteria in their stomachs is symbiotic (mutual).