one organism benefits at the expense of another through commensalism.
one organism benefits at the expense of another through commensalism.
one organism benefits at the expense of another?
commensalism
metabiosis is a more indirect dependency, in which one organism creates or prepares a suitable environment for a second. examples include maggots, which feast and develop on corpses, and hermit crabs, which use gastropod shells to protect their bodies.









































section::::see also.









































bullet::::- mutualism – where both organisms experience mutual benefit in the relationship









































bullet::::- parasitism – where one organism benefits at the expense of another organism.









































bullet::::- parabiosis – where both organisms occupy the same dwelling, but do not interfere with each other









































bullet::::- symbiosis – long-term interactions between different biological species, which can be mutualistic, commensal or parasitic
commensalism
an epibiont (from the ancient greek meaning "living on top of") is an organism that lives on the surface of another living organism. an epibiont is, by definition, harmless to its host. in this sense, the interaction between the two organisms can be considered neutralistic or commensalistic; as opposed to being, for example, parasitic, in which case one organism benefits at the expense of the other, or mutualistic, in which both organisms obtain some explicit benefit from their coexistence). examples of common epibionts are barnacles, remoras, and algae, many of which live on the surfaces of larger marine organisms such as whales, sharks, sea turtles, and mangrove trees. the host of the epibiont is typically referred to as the basibiont ("living underneath").
epibiont