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Symbiotic Relationships.  SYMBIOSIS refers to the relationship between organisms of different species that show an intimate encounter with each other.

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Presentation on theme: "Symbiotic Relationships.  SYMBIOSIS refers to the relationship between organisms of different species that show an intimate encounter with each other."— Presentation transcript:

1 Symbiotic Relationships

2  SYMBIOSIS refers to the relationship between organisms of different species that show an intimate encounter with each other.  AT LEAST one of the participating species MUST be provided a nutritional advantage.  3 TYPES of Symbiotic Relationships: 1. Parasitism 2. Commensalism 3. Mutualism

3 Parasitism -- VideoVideo  Interaction in which the PARASITE derives nutrients from the HOST.  This relationship is not good for the host, but great for the parasite.

4 Commensalism – videovideo  Interaction in between two species, where one organism benefits while the other is not harmed.  Organism benefits usually by feeding or protection

5 Mutualism – videovideo  Interaction between two species where BOTH organisms benefit.  They exchange food and shelter, and sometimes even protection.

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