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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

Commensalism

B

Amensalism

C

Ectoparasitism

D

Symbiosis

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The correct Answer is:
To determine the type of association between a sedentary sea anemone and a hermit crab, we can analyze the relationship step by step. ### Step-by-Step Solution: 1. **Identify the Organisms**: The two organisms involved in this association are the sea anemone and the hermit crab. The sea anemone is a sedentary organism that attaches itself to the shell of the hermit crab. 2. **Understand the Nature of the Relationship**: - The sea anemone benefits by gaining mobility and access to food as the hermit crab moves around. - The hermit crab benefits from the presence of the sea anemone as it provides protection from predators due to the stinging cells of the anemone. 3. **Evaluate the Types of Associations**: - **Commensalism**: One organism benefits while the other is neither helped nor harmed. This does not apply here since both organisms benefit. - **Amensalism**: One organism is harmed while the other is unaffected. This does not apply here as both organisms gain benefits. - **Ectoparasitism**: One organism benefits at the expense of the other. This is not applicable since the hermit crab is not harmed. - **Symbiosis**: A mutually beneficial relationship between two organisms. This applies here as both the sea anemone and the hermit crab benefit from the association. 4. **Conclusion**: The association between the sedentary sea anemone and the hermit crab is classified as **symbiosis** because both organisms gain benefits from their relationship. ### Final Answer: The association is **symbiosis**. ---
To determine the type of association between a sedentary sea anemone and a hermit crab, we can analyze the relationship step by step. ### Step-by-Step Solution: 1. **Identify the Organisms**: The two organisms involved in this association are the sea anemone and the hermit crab. The sea anemone is a sedentary organism that attaches itself to the shell of the hermit crab. 2. **Understand the Nature of the Relationship**: - The sea anemone benefits by gaining mobility and access to food as the hermit crab moves around. ...
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