Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test (DAT) efficiently. Utilize flashcards and multiple-choice questions with helpful explanations. Ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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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?

Commensalism
Mutualism
Parasitism
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.