Symbiosis

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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, harmful, or neutral to one or both parties.

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What is a parasite?

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A parasite is an organism that lives on or in another organism (the host) and causes it harm.

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What is a host?

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A host is an organism that provides a source of energy or a suitable environment for a parasite to live.

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What is mutualism?

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

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What is commensalism?

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

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What is parasitism?

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Parasitism is a type of symbiotic relationship where one organism benefits at the expense of the other.

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Example of mutualism:

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Wrasse fish and black sea bass: Wrasse fish eat parasites off the black sea bass, benefiting both.

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Example of commensalism:

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Barnacles on whales: Barnacles attach to whales for a place to live, while the whale is neither helped nor harmed.

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Example of parasitism:

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Tapeworms in intestines: Tapeworms live in the intestines of their host, benefiting while harming the host.

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What is the role of a parasite in an ecosystem?

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Parasites can help control host populations and contribute to the balance of ecosystems.