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22-05-2017
Biology

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Name and define the three main classes of symbiotic relationships. Give examples of each.

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22-05-2017

1. Mutualism ~ When both organisms benefit.

Egyptian Plover and crocodile

2. Commensalism ~ Only one organism benefits but the other remains neutral

Bird nest and Tree

3. Parasitism ~ Only one organism benefits and the other is harmed;

Dog and Ticks

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