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A certain type of marine worm lives in shells occupied by hermit crabs. When the crabs feed, the worm comes out to share the meal. This relationship is an example of:



A. Parasitism

B. Mutualism

C. Competition

D. Commensalism

Answer :

Final answer:

The marine worm and hermit crab relationship is an example of commensalism, where the worm benefits from the crab's feeding without harming it. In commensalism, one organism gains while the other is neither helped nor harmed. This contrasts with parasitism and mutualism, where relationships are either harmful or beneficial to both parties involved.


Explanation:

Understanding the Relationship between the Marine Worm and Hermit Crabs

The relationship described in the question is an example of commensalism. In commensalism, one organism benefits while the other is neither helped nor harmed. In this case, the worm benefits by getting access to food when the hermit crab feeds, while the crab is unaffected by the presence of the worm.

To further clarify the different types of ecological relationships:

  • Parasitism: One organism benefits at the expense of another (e.g., ticks on mammals).
  • Mutualism: Both organisms benefit from the relationship (e.g., bees pollinating flowers).
  • Commensalism: One organism benefits, and the other is unaffected.

This particular interaction showcases how organisms can share environments for mutual benefit without causing harm to each other.


Learn more about ecological relationships here:

https://brainly.com/question/15611150


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