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What is symbiosis?

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Symbiosis is a close and long-term interaction between two different species, which can be beneficial, neutral, or harmful to one or both parties.

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Define mutualism.

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Mutualism is a type of symbiotic relationship where both species benefit from the interaction.

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NGSS.MS-LS2-2

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Define commensalism.

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Commensalism is a type of symbiotic relationship where one species benefits while the other is neither helped nor harmed.

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Define parasitism.

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Parasitism is a type of symbiotic relationship where one species benefits at the expense of the other, causing harm.

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Example of mutualism: Hummingbirds and flowers.

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Hummingbirds feed on nectar from flowers, and in return, they help pollinate the flowers.

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NGSS.MS-LS1-4

NGSS.MS-LS2-2

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Example of commensalism: Cattle egrets and cattle.

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Cattle egrets feed on insects stirred up by cattle, benefiting from the relationship while the cattle are unaffected.

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Example of parasitism: Fleas and dogs.

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Fleas feed on the blood of dogs, benefiting from the relationship while harming the dog.

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NGSS.MS-LS2-3

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What is an example of mutualism in marine life?

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Clownfish and sea anemones: Clownfish get protection from predators while helping anemones catch prey.

Tags

NGSS.MS-LS2-2

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What is the role of a parasite?

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A parasite lives on or in a host organism and derives nutrients at the host's expense.

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NGSS.MS-LS2-2

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What is the difference between mutualism and commensalism?

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In mutualism, both species benefit; in commensalism, one benefits while the other is unaffected.

Tags

NGSS.MS-LS2-2