Ken Larsen's website - Symbiosis


Symbiosis is a close relationship between two different kinds of living things.


There are six types of symbiotic relationships:


Type Explanation Example
Predation The preying of one animal on another like one animal consuming another. Wolves hunting moose.
Parasitism The parasite benefits; the host is harmed.  About 40% of animal species are parasites.  
Competition Two or more organisms rely on the same environmental resource.  
Mutualism Both organisms benefit.  
Commensalism One organism benefits; the other is not significantly harmed or helped.  
Herbivory An animal consumes a producer or plant.  




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