Thursday, April 21, 2011

Blog #9:Define the different forms of community interaction: competition, commensalism, mutualism, predation, parasitism Give an example and a picture for each.


Competition is when organisms of the same or different species attempt to use an ecological resource the same place. An example of competition are the resources such as food, space, water, and etc. Commensalism is the relationship in which one species benefits, while the other is neither harmed nor benefited. An example of commensalism is when commensal species usually employs host species as  a home and/or transportation. Mutualism is an interaction that benefits both participants.  An example of mutualism is coevolution. Predation is an interaction in which one organism captures and feed on another organism. An example of predation is when interaction clearly positive for the preadator but negative for the prey. Parasitism is a parasite or disease that uses host for food, but does not immediately kill the host. It kills it slowly. An example of parasitism are Giardia lamblia, Dermacentor Andersoni, Hookworms, Pediculus humanus, Dirofilaria Immitis, and Mosquito.

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