A Relationship in Which One Organism Benefits and the Other

Question

A relationship in which one organism benefits and the other is harmed is called
A)commensalism.
B)parasitism.
C)synergism.
D)antagonism.

Accepted Answer

Parasitism is a type of relationship in which one organism (the parasite) benefits at the expense of the other organism (the host), which is harmed. Commensalism is a type of relationship in which one organism benefits and the other is neither harmed nor helped. Synergism is a type of relationship in which both organisms benefit, and antagonism is a type of relationship in which both organisms are harmed.