CLINICAL MEDICINE

MEDICINE

INFECTIOUS DISEASES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A tapeworm lives in the intestines of its host. Which examplebest describes the relationship between the tapeworm and its host?
A
The tapeworm benefits from its host; however, the host is not affected.
B
The tapeworm does not benefit from its host, but the host does benefit.
C
The tapeworm benefits from its host, and the host is negatively affected.
D
None of the above
Explanation: 

Detailed explanation-1: -Tapeworms are parasites that survive within another organism, known as the host. They grow after the host ingests the eggs of the tapeworm. Drinking contaminated water and eating contaminated food are the primary causes.

Detailed explanation-2: -Humans get the tapeworm infection after eating raw or undercooked pork contaminated with cysts of T. solium. When swallowed the cysts pass through the stomach and attach to the lining of the small intestine. In the small intestine the cysts develop into adult tapeworms over about two months.

Detailed explanation-3: -Human is harmed by the presence of tapeworm and develop several gut infections. Association of organisms where one of the partners is benefitted at the expense of other is called as parasitism.

Detailed explanation-4: -Parasites are usually smaller than their host. Parasites use both invertebrate and vertebrate hosts. Adult parasites may live on the host (e.g. lice), in the host (e.g. tapeworms) or feed on a host occasionally (e.g. mosquitoes).

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