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A sedentary sea anemone gets attached to...

A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is

A

ectoparasitism

B

symbiosis

C

commensalism

D

amensalism

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The correct Answer is:
B
This type of mutualsim to called symbiosis. In this type, the sea anemone grows on the back of the hemit crab. It protects the crab with the help of its nematocysts. In ectoparasitism an ectoparasite live on the outside of host, e.g. human body louse. In this interaction, the parasite gets the benefit at the expense of the host. Commensalism is an association between organisms in which one of both the species amensalism one species is harmed, whereas the other is unaffected.
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What type of relationship exists between sea anemone and hermit crab .

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