Symbiotic Relationships

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What is commensalism?

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A type of symbiotic relationship where one organism benefits while the other is neither helped nor harmed.

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Example of commensalism.

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Barnacles attaching to whales; barnacles benefit by getting a place to live, while whales are unaffected.

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What is mutualism?

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A type of symbiotic relationship where both organisms benefit from the interaction.

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Example of mutualism.

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Hummingbirds feeding on nectar from flowers while pollinating them.

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What is parasitism?

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A type of symbiotic relationship where one organism benefits at the expense of the other.

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Example of parasitism.

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Ticks feeding on the blood of mammals.

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What is predation?

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An interaction where one organism (the predator) kills and eats another organism (the prey).

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Example of predation.

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A lion hunting and eating a zebra.

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What is a symbiotic relationship?

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A close and long-term interaction between two different species.

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What is the difference between commensalism and mutualism?

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In commensalism, one organism benefits and the other is unaffected; in mutualism, both organisms benefit.