[2013] Trisha Nguyen: Symbiosis

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[2013] Trisha Nguyen: Symbiosis

Symbiosis relationshipsBy: Trisha Nguyen

A symbiotic relationship is a relationship between two different organisms that live near close physical association with each other in which one or two of the oragisms benefit from the relationship. There are three different types of symbiosis: mutualism, parasitism, and commensalism.

Parasitism relationship- a relationship in which one of the organism, the parasite, gets its nutrients from the other organism and benefits. The other oganism, the host, is harmed.

Mutualism relationship- a relationship between two organisms in which both organisms in the relationship benefit.

Commensalism relationship- a relationship between two organisms in which one organism from the relationship benefit while the other is unaffected.

In this picture, the bird is cleaning the alligator's mouth. Both animals are benefiting because the bird is getting food from by cleaning the alligators mouth while the alligator is benefiting by having a cleaner mouth.


In this picture, the bird on the elephant's back is there to eat the bugs on the elephant's back. The bird is the one benefiting in this relationship becaue it is getting food from the elephant's back. The elephant is unaffected.

In this pitcure, the vines are growing on the tree. The vines are the parasite in this relationship and is taking nutrientes from the tree. The tree is the host in this relationship is and being harmed.

One example of a Parasitism relationship is the relationship between a human and a mosquito. In the relationship, the mosquito benefits while the human is harmed. This is because the mosquito is getting nutrients from the human by sucking the human's blood. The human is providing the mosquito food but is being harmed.

One example of a Commensalism relationship is the relationship between an oak tree and a squirrel. In the relationship, the squirrel is the one that benefits while the tree is unaffected. The squirrel benefits in the relationship because the tree provides the squirrel food to eat. In this relationship only the squirrel benefits while the oak tree is unaffected.

One example of a Mutualism relationship is the relationship between flowers and bees. The flower in the relationship provides food for the bee. This benefits the bee since the food will give the bee energy. The bee will also go to flower to flower which will spread pollen. Spreading the pollen benefits the flowers so the flowers can reproduce. Both the flower(s) and the bee(s) benefit in this relationship.





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