PATHOLOGY MCQ
PARASITIC DISEASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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both organisms are harmed
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one organism benefits and the other is harmed
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both organisms benefit
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None of the above
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Detailed explanation-1: -Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed. Many species of animals are parasites, at least during some stage of their life. Most species are also hosts to one or more parasites. Some parasites live on the surface of their host.
Detailed explanation-2: -Parasitism is generally defined as a relationship between the two living species in which one organism is benefitted at the expense of the other. The organism that is benefitted is called the parasite, while the one that is harmed is called the host. A few examples of parasites are tapeworms, fleas, and barnacles.
Detailed explanation-3: -Parasitism: Association between two different organisms wherein one benefits at the expense of the other. All infectious agents causing illness belong to this category. Commensalism: Association between two organisms in which one derives benefit from the other without causing it any harm.
Detailed explanation-4: -Examples of parasites include mosquitoes, mistletoe, roundworms, all viruses, ticks, and the protozoan that causes malaria.