Definition: a close interaction between two different species which live together and interact with each other for an extended period of time
Commensalism (+,0) is a interaction where the commensal partner benefits while the other (host) derives neither benefit nor harm.
Example of commensalism: Clown fish and sea anemones
Read more about "commensalism" in your text book (pg. 251)
Mutualism (+,+) is a relationship between two species of organisms in which both organism benefits.
Example of mutualism: Bird and water buffalo
Read more about "mutualism" in your text book (pg. 252)
Parasitism (+,-) is a symbiotic relationship in which one organism benefits while the other is harmed.
Example of parasitism: Rafflesia sp.
Read more about "parasitism" in your text book (pg. 252)
Saprophytism is a type of interaction in which living organisms obtain food from dead and decaying organic matter.
Example of saprophytism: mushrooms
Read more about "saprophytism in your text book (pg. 253)
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