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Symbiotic Relationships

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Elena Hadley

on 3 June 2013

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Transcript of Symbiotic Relationships

Background photo by t.shigesa Definition Commensalism Parasitism Mutualism Symbiotic Relationships A symbiotic relationship between individuals
of different species in which both individuals benefit
from the association

They rely on each other for nutrients, protection and other life functions. Definition A form of symbiosis between two organisms of different
species in which one of them benefits from the association
whereas the other is largely unaffected or not significantly
harmed or benefiting from the relationship. A form of symbiosis in which one organism (the parasite)
benefits in expense of another organism (the host) usually of
different species, the association may also lead to the entry
of the host. Examples Anemone and Clown Fish Coral and Zooxanthellae As a form of symbiosis, the organisms are typically found in close proximity despite of their differences in speciation. Although they thrive in the same area there is no major competition between them. Examples Barnacles and Turtles Shark and Remora Fish Definition Parasites derive benefits from their host, most often nutritional resources and shelter, over a long period of time.
It is advantageous to parasites if they do not harm their hosts too badly, because that prolongs the period during which parasites can obtain benefits from hosts. Examples Fish and Isopod Fish and Tapeworm Definition A close, prolonged association between two or more different organisms of different species that may, but does not necessarily, benefit each member. A species may be so dependent that it cannot live without its mutualistic partner. In other cases the species can interact mutualistically with more than one partner or even live without its partners under certain conditions.
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