In Ecology, commensalism is a type of relationship among organisms where:

Answer: [B] one organism benefits while the other is neither benefited nor harmed

Mutualism is an interaction between species in which both benefit from each other. Commensalism is an interaction between two organisms where while one is benefitted from other, the other remains neither benefited nor harmed.

This question is a part of GKToday's Integrated IAS General Studies Module