Relationships in a Community

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Presentation transcript:

Relationships in a Community Predation and Symbiosis

Predation: -One animal (the predator) kills and eats another animal (the prey)

Symbiosis- -When two different organisms have a close relationship. There are 3 kinds.

1. Mutualism- -When both organsims benefit from the relationship. -examples:

Commensalism- -When one organsim benefits and the other is unaffected. -examples:

Parisitism: -When one organsim (the parasite) benefits and the other (the host) is harmed, but not killed. DIFFERENT FROM PREDATION!

niche- (pronounced “nitch”) the role an organism plays in its community. Examples: producer, herbivore, carnivore, omnivore, predator, prey, parasite, host, etc. Biodiversity- Variety of organisms in a community High biodiversity= rainforest, coral reef Low biodiversity= ice caps, desert