Monday, December 1, 2008

Symbiosis

There are many different examples of symbiosis. Some can be found in your very own backyard or even on you! Symbiosis is sorted into three different types. There is commensalism which is when one organism is benefiting and the other is unharmed. The other type is mutalism which is when both organisms benefit. The third is parasitism which is one organism is benefiting and the other is harmed. An example of commensalism is a whale and the barnacle. The barnacle gets nutrients and the whale dose not mind. An example of mutalism is digestive bacteria and a human. They are both helped. The digestive bacteria feeds and the human has help digesting.An example of parasitism is weeds and a plant. The weeds have an area to live and they take over the plant and get nutrients off them and block some of the sunlight and oxygen. The plant is harmed because the plant normally dies. As you can see, in each of these relationships, one of the organisms will always benefit. The organisms leave on, in, or near the other organism. There are so many different examples of symbiosis and can be found pretty much anywhere.

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