Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test with our comprehensive quiz! Enhance your knowledge with multiple choice questions designed to simulate the actual DAT experience, complete with hints and detailed explanations. Ace your dental school application!

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What is the term for a symbiotic relationship between two organisms in which one partner benefits, while the other is harmed?

  1. Commensalism

  2. Mutualism

  3. Parasitism

  4. Symbiosis

The correct answer is: Parasitism

Parasitism is a type of symbiotic relationship in which one organism (the parasite) benefits while the other (the host) is harmed. A parasite feeds off of its host, often resulting in negative consequences for the host such as illness or death. A is incorrect because commensalism describes a symbiotic relationship in which one organism benefits while the other is unaffected. B is incorrect because mutualism describes a symbiotic relationship in which both organisms benefit. D is incorrect because symbiosis is a general term that describes any type of close relationship between two different species. It does not specify if one organism is benefiting or being harmed.

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