NationMaster - Encyclopedia: Amensalism

Amensalism is an interaction between two species where one impedes or restricts the success of the other while not being affected, positively or negatively, by the presence of the other. Usually this occurs when one organism exudes as part of its normal metabolism a chemical compound detrimental to another organism. Amensalism is a form of symbiosis. Biological interactions result from the fact that organisms in an ecosystem interact with each other, in the natural world, no organism is an autonomous entity isolated from its surroundings. ... In biology, a species is a kind of organism. ... In biology and ecology, an organism (in Greek organon = instrument) is a living being. ... Santorio Santorio (1561-1636) in his steelyard balance, from Ars de statica medecina, first published 1614 Metabolism (from μεταβολισμος(metavallo), the Greek word for change), in the most general sense, is the ingestion and breakdown of complex compounds, coupled with the liberation of energy, and the consequent generation of waste... A chemical compound is a chemical substance formed from two or more elements, with a fixed ratio determining the composition. ... Common Clownfish (Amphiprion ocellaris) in their magnificent sea anemone (Heteractis magnifica) home. ...

Categories: Biology stubs | Ecology In biology, a species is a kind of organism. ... Biological interactions result from the fact that organisms in an ecosystem interact with each other, in the natural world, no organism is an autonomous entity isolated from its surroundings. ... Ecology is sometimes used as a synonym for the natural environment. ... In ecology, commensalism is an interaction between two living organisms, where one creature benefits and the other is neither harmed nor helped. ... Mutualism is also the form of Anarchism described by Pierre-Joseph Proudhon . In biology, mutualism is an interaction between two species in which both organisms derive some degree of benefit. ... Neutralism describes the relationship (or lack thereof) between two species which do not interact with or affect each other. ... Predation is an interaction between organisms (animals) in which one organism captures and feeds upon another called the prey. ... Carnivores are animals that eat a diet consisting mostly of meat. ... In zoology, an herbivore is an animal that is adapted to eat primarily plants (rather than meat). ... Parasitism (in Greek: παρασσυτισμός) is an interaction between two organisms, in which one organism (the parasite) benefits and the other (the host) is harmed. ... Parasitoids differ from parasites in their relationship with the host. ... Common Clownfish (Amphiprion ocellaris) in their magnificent sea anemone (Heteractis magnifica) home. ... Competition characterises a biochemical, ecologic, economic, political, or sporting activity whereby two or more individuals or groups strive antagonistically against one another for some reward. ...